Interview Transcript
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JM: Dr.
Joseph Mercola
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AW: Dr.
Alexander Wunsch
JM: This is one of the most important video
interviews I believe you'll ever see. Hi, this is Dr. Mercola helping you take control of your health.
Today, we
are joined by Dr. Alexander Wunsch from Germany. He is
really a world class expert, one of the best I know of, in
photobiology.
We're going to talk about the dangers, the
hidden stealth dangers, of light-emitting diode (LED)
lighting that you most likely are not aware of.
Welcome and
thank you for joining us today, Dr. Wunsch.
AW: Hi, Dr. Mercola.
JM: I'm really excited for this interview.
We had an
interview a few years ago, and I knew you were brilliant in
this area but I just wasn't smart enough to understand the
implications of what you had to teach.
I've actually grown
wiser since our last interview, and I'm really excited about
you sharing with us all the important information you have
that can get us up to speed in this area.
Because - let me just give a brief summary and then we'll
dialogue - but briefly, largely as a result of energy
efficiency, there's been a major transition to using LED as
a primary light source. And it works, it works on steroids.
Literally, it has a 90 to 95 percent reduction in energy
power because the older incandescent thermal analogs sources
of lighting generate a lot of their light as heat. Most of
us believe that was inefficient and wasteful.
But it turns
out that heat is actually infrared radiation and may be very
beneficial for us. Yes, it costs a little bit more but it
might be hugely beneficial.
There are some major downsides about LED lighting that we
just don't appreciate. I know I didn't. I was massively
exposed to this.
This may be one of the most important,
non-native EMF radiation exposures that each and every one
of us has.
If we don't take control of this, we are looking
at some very, very serious long-term complications, the
least of which is age-related macular degeneration, which is
the leading cause of blindness in the United States, and
then cataracts, of course, too, and other foundational
mitochondrial dysfunction components.
What we want to focus on today are the dangers of LED
lighting. Why don't you - I sort of painted the broad canvas
there, Dr. Wunsch - if you could give us some background
information that will help us get up to speed on some of the
foundations we need to understand to appreciate the dangers
of this.
Obviously, we'll focus on the last part of this
interview with practical things that we can implement.
AW: How to begin in this large field? The first question we
should raise is,
"What is light?"
It's not so easy to give
an answer to this question, "What is light?"
Do we take into
account only
what our eyes can directly perceive? Then we are in line
with the standards, which are applied to our artificial
light sources at the moment, which means there is a
definition.
Light is only between 400 nanometers and 780 nanometers or
so. This is even shrunk down to 420 to 630 nanometers U2
efficiency reason. There is much more about light. It's more
than vision. When we look at the sunlight, we have a much
broader spectral range, from somewhere around 300 nanometers
up to 2,000 nanometers or so.
For our energy efficiency calculation, it makes a big
difference if we are talking about this broad natural range
or if we are only talking about what our eyes directly are
able to transmit in terms of vision performance.
And so, it
was kind of preset, given in the 1930s, the definition that
we are only looking at the visible part of the spectrum.
This led to the development of energy- efficient light
sources like the fluorescent lamps or what we have nowadays,
the LED light sources, because they are only energy
efficient as long as you take the visible part of the
spectrum.
If we would say, for example, red light for therapy from red
light lamps can be used in medical therapy to increase blood
circulation, and this is a part we are taking away as long
as we only look at the visible part.
Physicists think that
infrared radiation is just thermal waste.
But from the
viewpoint of a physician, this is absolutely not true,
because in the last 30 years there have been hundreds and
hundreds of scientific papers being published on the
beneficial aspects of a certain part in the spectrum, which
is called
near-infrared or infrared-A.
You cannot feel it as heat, and you cannot see it. It's a
kind of hidden treasure in the spectral range.
This is what
I think we have to look at if we want to understand where
the difference between the artificial light sources, the
non-thermal artificial light sources, and natural artificial
light sources like the incandescent lamp.
JM: Excuse me for a moment. I just want a point of
clarification here. I'm certainly confused, and I believe a
lot of others are.
When we talk about infrared radiation, is
that both near and far infrared, and what are the
wavelengths of that?
After you answer that question, if you
can perhaps start to explain the difference between analog
and digital forms of light sources, because I think that is
a really important part of this whole reason that massively
factors into the complexity of understanding the scope of
this problem or the magnitude of the issue.
AW: We have to discriminate the analog and digital problem
from the spectral problem, which concerns these modern light
sources.
You asked about clarification with regard to the
infrared radiation. When you look at the rainbow spectrum,
the visible part ends in the red and the infrared-A or the
so-called near-infrared begins.
Then we have infrared-B and
we have infrared-C.
In another terminology, there is near-infrared, there is
mid-infrared, and there is far-infrared. What we normally
would expect from infrared radiation is that we feel the
heat, that we feel warm.
But this does not apply to the
infrared-A, which is the wavelength part between 700
nanometers and 1,500 nanometers.
JM: Wow.
AW: Here you have no absorption by water molecules, and this
is the reason why radiation has a very high transmittance.
In other words, it penetrates very deeply into the tissue,
so the energy distributes in a large tissue volume. This
near-infrared A is not heating up the tissue so you will not
feel directly any effect of heat.
This significantly changes when we increase the wavelength,
let's say, to 2,000 nanometers. Here we are in the
infrared-B range and this already is felt as heat.
And from
3,000 nanometers on to the longer wavelength, we have almost
full absorption mainly by the water molecule and this is
heating up. So from a lake in spring, it will heat up in the
upper inches and still the water is quite cool down below.
This is the kind of natural proof that the longer
wavelengths are more or less totally absorbed and
transformed the light energy into thermal energy, which is
the water molecule movement.
(-----10:00-----)
JM: Thank you for that clarification.
That greatly helps to
clear certainly my confusion, and I suspect many others,
when you differentiated that. I didn't realize the
near-infrared had such a wide spectrum, 700 to 1,000
nanometers.
Maybe if you can touch on
- before going to the
analog versus digital discussion - a bit about the
importance of the infrared for health, and maybe we could
even go into the retina and how it works with respect to
priming the cells for repair and regeneration.
And really,
almost forming this justification to switch with - one of
our recommendations at the end is going to be switch back to
incandescent, which is an energy hog admittedly, takes up
maybe 20 times as much energy as these energy-efficient LEDs.
But it's not wasted energy. It's actually coming out in
wavelengths that are actually helping your health.
Can you describe at a biological level what happens when
we're exposed to these wavelengths from incandescent bulbs
or solar radiation from the near-infrared, and how it helps
restructure at a molecular basis, our mitochondria, what
happens in the retina, and - the other light source I've
neglected to mention was infrared saunas.
We can have a
discussion on that too.
AW: The first question we have to ask is, "What molecules
are we addressing?" or what other so-called - In
photobiology, you call these molecules
chromophores.
These
are molecules which are capable of absorbing exactly the
wavelength you are emitting with the light source.
The first aspect is that we have to consider that there is a
so-called optical tissue window, which ranges from 600
nanometers to 1,400 nanometers.
So it's almost completely
covered by the infrared-A part of the spectrum. This optical
tissue window allows the radiation to penetrate deeply into
the tissue. When I say deeply, I'm not talking about a
millimeter or two. I'm talking about several centimeters or
at least an inch or even more.
The chromophores in the
tissue, which absorb the light energy are - a part of these chromophores is found in the mitochondria and the other part
of the water molecules, which are specifically activated.
Not in terms of heat radiation, of chaotic molecular
movement.
The water molecules are specifically addressed.
For example, in the realm of membranes in the exclusion
zone, which covers, like sheets, the micro-anatomical
structures within the cells.
Talking about the mitochondria
first, here we have a
specific molecule, which is called cytochrome c oxidase.
This molecule is involved in the energy production within
the mitochondria.
Energy for cells means adenosine triphosphate (ATP), which
is the end product of the correlation of the energy
production. This is the fuel that our cells need for almost
anything, most for motility, for transporting of ions, for
synthesizing products, for metabolism.
The ATP production,
if it would stop now at the moment, I could survive for
another 12 to 15 seconds. My body produces about 85
kilograms of ATP in 24 hours.
JM: Okay. Let's stop there, because I've watched many of
your videos in English.
You have many more in German. I can
tell you that you provide so much information in your videos
that I have to watch them three, four, five times.
Because
you just state things as facts, which is fine, it's just
your presentation style. But that is a phenomenally
important statement.
I'm not going to let that escape and
just let people not appreciate what that is. But 85
kilograms or - that's your body weight - we produce in,
whatever we weigh in pounds or kilograms, we produce that
amount in ATP.
It's just an extraordinary statistic but most people are
clueless about. It's a really important concept and the
other thing that you mentioned is that, yes, literally we
can last about 15 seconds without ATP, 15 seconds.
We can go
four minutes, or we can go maybe 8 or 10 minutes, without
oxygen. We can go a few days without water. We can go for
months without food. But 15 seconds without ATP, that's the
important thing.
That's why we want to focus on this because
light is such an important misunderstood part of the
equation for energy production, specifically at the
mitochondrial ATP level.
I'm sorry for interrupting you, but
I just wanted to emphasize that because it's really
important.
AW: No, no, it was definitely important to highlight this
because the
cytochrome c oxidase, which is this absorbing
molecule, is the last step before the ATP is finally
produced in the mitochondria.
Here we have this tipping
point where light in a wavelength range between 570
nanometers and 850 nanometers is able to boost the energy
production, especially in cells when energy production is
depleted.
Here we have one important mechanism where this long
wavelength part of the spectrum where the near-infrared
light is bolstering the energy situation in our
mitochondria.
And we know today that many signs of aging,
for example, they really are the consequence of hampered
mitochondrial functioning, and so we have a very interesting
and still soft tool to enhance the energy status in our
cells, in the mitochondria in our cells, and not only on the
surface but also in the depths, regions and areas, of the
tissue.
This is one important aspect and there are hundreds
of papers published on these positive effects.
You can see it in, for example, wound healing, you can see
it in anti-aging procedures. There are many applications
developed in the meantime where we use this optical tissue
window, and we shine through this optical tissue window
light in the range, which cannot be found in standard
general lighting appliances like LEDs or fluorescent lamps.
The cytochrome c oxidase is responsible for an increased
production of ATP. This means in turn that the cell, which
has better energy supply, is definitely able to perform
better. So the liver cell with more ATP will be able
to detoxify the body much better. The fibroblast in the skin
will be able to synthesize more collagen fibers and so on,
and so on.
This is one important brick in the wall.
JM: Let me expand on that brick for a moment if I can.
This
is information that you shared in some of your recorded
videos online that we'll have a link to. That literally
astounded me. I mean I literally almost fell down when I
heard this because I couldn't believe it. We had a
discussion about this previously and you confirmed that it
was true.
This is an important tangent to the point that
you've just mentioned.
(-----20:00-----)
It's all about energy production.
What I didn't appreciate
until I heard it from you, is that maybe only one-third, a
measly third, of our energy that we produce - and obviously
one of those is ATP - comes from the food that we eat.
The
electrons that are transferred from the food, primarily the
fats and the carbohydrates, are ultimately transferred to
oxygen and generate that ATP.
But only one-third of the
energy comes from that. The rest, two-thirds or so, comes
from this light exposure.
And if you're exposed to LED
lights, as you just mentioned - but again, people may
(inaudible 20:36) - LEDs don't have that frequency from 500
to, I believe, 800 nanometers, which is the near-infrared
primarily that hit the cytochrome c oxidase and generate the
energy of the ATP.
Can you expand on that? Because I think
virtually no one has this appreciation.
AW: Yeah. I think we have to differentiate between the
metabolically used energy, which definitely comes from food
intake.
But there is a thermodynamic aspect to it as well.
When you think about the body temperature - I don't know how
much it is in Fahrenheit, but in Celsius (I can tell you in
Celsius), it's 37 degrees. And I can tell you in Kelvin,
this is 310 (degrees) Kelvin - to keep up this body temperature.
It's not only the result
of burning carbohydrates in the mitochondria using the
oxygen.
JM: Just for a moment, the 37 degrees centigrade or Celsius
that you've mentioned is basically body temperature, which
is 98.6 degrees Fahrenheit.
AW: 90.6?
JM: 98.6.
AW: 98.6. Okay. This is what I have to learn for the
Americans.
JM: Yeah. The Americans. I mean these Americans are still on
the imperial measurement system for the most part, but the
rest of the world is on Celsius.
AW: To maintain this body temperature, it's not only the
result of energy production in the mitochondria.
The heat in
our body comes in part from the mitochondria, but the major
part comes from longer wavelengths in the infrared range,
and comes from near-infrared for example, because the
near-infrared radiation in sunlight is very present, in
incandescent lamp light as well.
This radiation, this energy, this photonic energy, is able
to even pass through our clothing because this is one
important property of infrared radiation, that it just goes
deep and it goes through like the terahertz radiation at the
airport scanner, and so on.
The radiation can enter the body
and then will be transformed into longer wavelengths in the
infrared part. They are very important for supporting the
temperature level, of the thermal energy level, of our body
which is, for all the mammals, a very crucial aspect.
A lot
of energy comes in the form of radiation and this is
supporting our thermal balance more or less.
JM: Okay, good. It's still a little confusing. You had
mentioned earlier, there were some German studies that are
60 years old that actually support this concept.
The key
point to take home here is that it's not just the food you
eat, it's the energy exposure that's going to run your
metabolism and you need to get that. That's why exposure to
sunlight is so healthy.
It's one of the hidden keys and many
people interested in natural health will at least
acknowledge and recommend it. It's part of the
recommendations. It's far more important than you can ever
imagine.
We're only going to be touching the surface of why it is
important today.
But we do want to keep our promise and
focus on the LED wavelengths. The dangers of LED lighting,
which is really a message that has to be shared, we have to
sound the trumpets on this one because no one virtually
understands this.
They get it at night, they shouldn't be
exposed to this at night, but it's far more than at night.
And part of the problem is the analog versus digital mode of
administration of that light.
Could you discuss with us the
difference between analog and digital lighting?
AW: You probably remember the dimmer we had in former days
when we used the incandescent lamp to just dim the
intensity.
This is something which will not work in the same
way with LED lamps. Many of the actual LED lamps are not
dimmable anyway because they function kind of different.
If you reduce, for example, for a color changing system you
have three different LEDs, a red, a green, and a blue LED,
and the intensity of these three colored channels has to be
changed in order to achieve different color use, which are
perceived by the eye in the end.
The control of the
intensity output of an LED is realized in a digital manner
because it's very difficult to have a low intensity in many
different steps.
The dimming of LEDs is realized by a so-called pulse-width
modulation, which means the LEDs switch on to the full
intensity and then they fully switch off, and then they
switch on again.
So we have the constant on and off in
frequencies, which are higher than our eyes are able to
discriminate.
But on the cellular level, at least it is
still perceivable for the cells. This switching on and off
of the LEDs, this is something - you can compare this with
the digital states of fully on, which is the one, and zero,
fully-off.
This is the way how the LEDs are normally controlled in the
intensity, for example also, the backlight illumination of
your computer screens or of your TV sets, this causes a
flicker, which is not perceivable for let's say 90 percent
of the population.
But it's still biologically active.
And
flicker is something that is very harmful to our system
because when you think back to the cathodes ray tubes TVs - we call them
"flimmerkiste" in Germany, this means "flicker boxes."
When you nowadays are in contact with an old TV set, you
might become aware of this intense flicker, because your
system in the meantime is trained to look into modern flat
screens, which do not flicker in this harsh and crude
frequency.
This demonstrates that our brain is able to
filter out the flicker after a certain while. But this takes
a lot of calculation energy in our system.
If we have light,
which does not flicker like, for example, the incandescent
lamp has metal filament and it's glowing, so this is very
lazy. It's not able to transmit the highest flicker
frequencies in comparison to what the LEDs could transmit.
We have even developments where scientists try to transmit
information via high-frequency flicker in the LED lighting
in the room in order to replace the wireless LAN system, and
I think this is really not a good idea.
(-----30:00-----)
I call these LEDs - I like to call them Trojan horses
because they appear so practical to us.
They appear to have
so many advantages. They save energy; they are solid state,
very robust, for example. So we invited them into our homes.
But we are not aware that they have hidden properties, which
are harmful to our system, harmful to our mental health,
harmful to our retinal health, and also harmful to our
hormonal health or endocrine health.
JM: They weren't even necessarily invited.
These are being
mandated by federal policy. Not only in the United States,
but as I understand, in much of Europe, in an attempt to
conserve energy. And they've been effective.
I mean from
that perspective, we can't just argue with them that this
has been an incredibly effective, energy-saving strategy but
it's just absolutely ignored the impact, as you're starting
to discuss, the biological health.
Maybe you can expand on that, the biological health
implications, and then I really want to spend a good portion
of the next discussion to the practical take-home
recommendations.
Because there's a lot
- once you understand
the basics - there's a lot of things that you need to
implement to have a personal strategy to circumvent the
dangers that each and every one of you watching this are
exposed to.
AW: In order to clarify the dangers in principle, I think
it's a good idea to express, again, that the LED, the light
emitted from an LED, has not the same quality you would
expect from a natural light source.
A natural light source
normally is a black body radiator, which gives off all kinds
of wavelengths in a more or less continuous manner.
The LEDs
we have nowadays are fluorescent lamps, they consist of a
blue LED, a driver LED, and a fluorescent sheet, which
covers the blue LED and transforms part of the blue light
into longer wavelengths, yellowish light.
The yellowish
light from the fluorescent layer combines together with the
residual blue light to a kind of whitish light, which
consists of a lot portion of aggressive blue light.
Blue has the highest energy in the visible part of the
spectrum, and produces, infuses, the production of reactive
oxygen species, of oxidative stress.
The blue light causes
oxidative stress in the tissue, and this stress has to be
counteracted. We need even more regeneration from blue
light, but the regenerative part of the spectrum is not
found in the blue, in the short wavelength, part.
It's found
in the long wavelength part, in the red and the
near-infrared. So tissue
regeneration and tissue repair results from the wavelength,
which are not present in an LED spectrum.
We have increased stress on the short wavelength part and we
have reduced regeneration and repair on the long wavelength
part. This is the main problem.
Diseases come apart in a way
our organism is not accommodated to, because we don't have
this kind of light quality in nature. This has consequences,
the stress has consequences, in the retina.
It has
consequences in our endocrine system.
What I think we know, or many of us know, in the meantime
that the blue light in the evening reduces the melatonin
production in the pineal glands. But for example, we have
also cells in our retina, in our eyeball, which are
responsible for producing melatonin in order to regenerate
the retina during the night.
If we use LED lights after
sunset, we reduce the regenerative and restoring capacities
of our eyes. If we have less regeneration, we open the door
to degeneration.
This is the age-related macular
degeneration you were talking (about) before.
JM: Yes, indeed. Thank you for that explanation. I really
appreciate it.
I just wanted to get into some of the details
of the dangers of the LED, and maybe just summarize what you
just mentioned, in that these LED digital light sources are
primarily focused in the
blue wavelengths.
They have very
little red in them, certainly virtually no infrared.
And
it's this red infrared that's repair and regeneration mode.
If you provide these aggressive lower frequencies, the blue
lights, they create these reactive oxygen species which
can't be - the damage from them - I mean, we need that.
Let's not say that all those reactive oxygen species are
dangerous.
They're not. Because that's what's important.
I think we don't have enough time to discuss the importance
of setting your circadian rhythm and exposing yourself to
balanced blue light that's not only has the blue but also
has the near-infrared and the far-infrared, like in the
morning.
That sets our circadian rhythm. You need that. But
the damage that somebody, by the blue light, is balanced by
the red and infrared so it can repair and regenerate, and
everything is just the way it was meant and designed to be.
I'm wondering - because there's a whole range of LED lights
out there, we're going to step now a little bit into what
you can do with this knowledge.
Are there - and many people
had this question - you can get cool white, which is the
high blue light LEDs which are bright white versus the warm
white LEDs.
I'm wondering if you can
- if there are types of LEDs that do have some of the red and the near-infrared in
them or they just don't exist? And another version of this
question, are there any healthy LEDs?
AW: Well, there's no easy answer to that.
JM: Like most good questions.
AW: Because when you bought an incandescent lamp, you
exactly knew everything about the spectral distribution, for
example.
You knew that after a thousand hours that it would
fail, it would break, stop functioning.
JM: Let me just interrupt you for a moment on this, because
there's an interesting component. Everyone knows that the
old incandescent bulbs fail in 1,000 hours. That, folks, is
by design. There's a movie - a documentary out there.
These
bulbs can last a hundred years continuously if they designed
it that way. It's designed to fail in a thousand hours. I'm
sorry for interrupting.
I just thought it was an interesting
tangent.
AW: With the LEDs, everything is different because there are
LEDs outside there where you have high portions of blue in a
warm-appearing light, because the blue is masked by high
amounts of yellow and orange.
There are also LEDs available
with lower portion in the blue, which are very close to the
spectral distribution of incandescent lamps with regard to
the bluish part of the spectrum. It is impossible to tell
without measurement.
This is the problem with an
incandescent lamp. You knew what you would get.
With LED, the layman is not able to tell if it's a tailored
spectrum where you have the blue part only masked by
excessive parts of other spectral regions. There are
different technologies.
You were sending me a question, I
think yesterday, with regards to a specific company, which
produces LEDs with a different technology.
(-----40:00-----)
Soraa, for example, they have violet driver LED, not blue
but violet driver LED.
And they achieved, by their
technology, the red is a little bit more emphasized compared
to the standard white light fluorescent LEDs. So there are
in fact better and worse LED types around.
But the spectral
distribution is just one thing, what the customer could use
as a kind of information if the color rendering index, but
not the color rendering index are A, which only covers the
first eight testing colors.
We are interested in the R9 which represents the full reds.
And this is sometimes, this information is sometimes given
on the package that you have for example,
nCRI which is the
color rendering index of 95 with an R9 of 97 or so.
This is
the only sign for the customer that you have a high level or
a high index for the R9.
JM: Okay. That is the key thing. Maybe we should have
discussed that earlier because these are two important
pieces of information you need to understand when you're
looking at lighting.
One is the CRI you mentioned, the color
rendering index. But it should be the r9. And ideally, the
goal standard is the sunlight, and that's 100.
AW: The incandescent is 100, and the candle is 100.
JM: Yes. So that's the best. Now you're never going to get
that - well maybe never, but you're not going to get it
through an LED or halogens - not halogens but fluorescents.
You got to know that.
The other is the color temperature,
which is the incandescence 2,700 Kelvin and then 6,500
degrees Kelvin for the LEDs, which is the really bright
white LED. Why don't you talk about that? I guess if you use
those two metrics, you can identify healthy lighting.
But
then we'd still have to address the analog versus digital
component.
We don't want to be screwing up our cells by
getting them these digital signals that they were never
designed to be exposed to.
AW: You would have to measure somehow if the LED produces
flicker or not. Two years ago, three years ago, it would
have been much easier because the camera of an elder
smartphone was not so high-tech equipped as they are today.
With an old smartphone camera, when you look into the light
source, you can see these wandering lines, so you can detect
if the light source is flickering.
What else could be a kind of work-around is the slow-mode
of a smartphone camera, if you film the light source with
the slow-mo modus, then you might also see the switching on
and off of the light source, just in slow-mo.
This is one
thing that works sometimes quite well. But it depends on the
type of the smartphone camera that you are using.
Because
the cameras in the meantime, they have an algorithm
implemented, which detect the flicker frequency and the
light and then changes the shutter frequency of the camera
in order to avoid these interferences. So the cameras in the
meantime are made in a way that they block out the flicker
even if it's there.
JM: Excellent. Can you maybe touch on the color temperature
of the lighting source? Because that seems to be another
useful tool. Or is it too complex a topic?
AW: The color temperature, in fact, is a useful tool to fool
the customer because there are two different kinds of color
temperature.
The one is the physical color temperature,
which means your light source has exactly the temperature in
Kelvin. This applies to the sunlight. This applies to the
candlelight.
This applies to the incandescent lamp light,
halogen, and standard incandescent. These light sources are
truly that hot, so if the color temperature is 5,500 Kelvin
for the sun for example, the sun's surface is 5,500 Kelvin
hot.
You cannot reach higher colored temperatures using
incandescent lamps in 3,000 Kelvin because otherwise the
metal of the filament would melt and evaporate, so this will
not work.
There is a kind of natural limit given by
technology.
The other type of color temperature is the correlated color
temperature. This means you calculate a lot until you can
tell this light source might appear to the human eye in a
similar way than light source with a true color temperature
of, let's say, 2,700 Kelvin.
This is the problem because you
can tailor the color temperature however you want to. For
example, you have probably seen these filament LED lamps. In
the meantime, they are entering the market and they look
very similar like the standard incandescent lamp because
they have these very thin and elongated LED filaments
installed inside.
Do you know what I'm talking about?
JM: Sure.
AW: Have you seen them? If you look into these with a grey
filter, with a strong grey filter, you can see that you have
three cold white LEDs on the screen and then one red LED.
Then another three cold white LEDs and one red LED. In fact,
this is a cold white light source. But by the additional red
LEDs which are integrated into the filament, our eye, and
also the measuring instrument, as a result, this appears to
be a warmer light.
But in fact, on a cellular level and on
the level of the retina, the majority of the light is still
bluish white, cold white.
This is the problem with the correlated color temperature,
that you have a lot of tricks to tailor the value in a way
that you still are using cold white light sources, that
you've masked the light
in a way that it appears warmer to the human eye.
But the
impact on the physiology is still the same, or more or less
the same, as you would expect from a cold white source.
JM: You've got two things. You've got that sort of metrical
- not metrical but transition - or deceptive solution or
interpretation of the data that these companies are
providing.
And you also have the digital component, so the LEDs really are not in any way, shape, or form a healthy
biological form of life.
Let's talk about solutions now and focus on them. Let me
first mention that a lot of what I'm sharing with you is
based on mistakes.
I'm one of the early technology adopters,
and I was one of the first people to really switch out all
of my incandescent bulbs for LED lighting.
(-----50:00-----)
When they first came out, it was at least almost 10 years
ago now that I had switched over to LEDs, and before that
fluorescent lights, full-spectrum fluorescent, which is
another deception name.
If we have time, I want to talk
about that.
But what we want to focus on now is that literally, the
danger.
There's no question there's danger in LED light
exposure all the time of the day, but it's a relative one,
so that if you're exposed to LED light and there's lots of
biological full-spectrum sunlight through the windows - which is a whole other issue too, that we can talk about
because sunlight outside and through the window are two
different animals - but if you have that as a component,
it's not as biologically dangerous because I believe that
that compensates specially with the higher frequencies and
the sunlight.
But it becomes really dangerous at night.
From this perspective, I haven't changed out all of my
lights back to incandescent because they're such energy hogs
and really the only ones that I use at night because I have
a big house and there's lots of lights and people,
contractors and stuff, come over all the time.
They leave
lights on all the time. It would be crazy. That's just a
magnificent and extraordinary waste of energy if they did
that. But I never use these lights. I just leave them in
there.
But the ones you use all the time that you really, really - this is the take home message of this presentation
- is that
you have got to switch back to
incandescents. And not just
any incandescents, these are incandescents that are clear
transparent outer bulb. Not the ones that are coated with
white to keep a cool white light.
You don't want that. You
want the 2,700 degree Kelvin incandescent, thermal analog,
energy source of that light. It's the only light you use at
night.
We're going to insert some of these graphics that you have
in your PowerPoint slides that really powerfully illustrate
the color spectrum of an incandescent, which has very small
levels of blue. I mean it's extraordinary.
There's some, but
there's not hardly any blue light in that, which is exactly
what you want at night. You do not want blue light exposure.
Now personally, it's the only light that I use after sunset.
Even then, once the sun goes down, I put on my blue
blockers. I neglected to keep them here now because it's the
middle of the day, I
wouldn't put them on. I call them reverse sunglasses. I
don't care what company you get them from. You can get them
for under 10 dollars. You can get them and spend 100 dollars
for them. Get whatever you like. But the moment the sun goes
down, these blue blockers go on even if there's incandescent
sources.
That's my summary, and I'm wondering if you can
expand and really amplify those comments.
AW: It is definitely a good idea to keep away the short
wavelengths in the evening, so after sunset, as you said.
And it's also a good idea not to intoxicate your environment
with too much light.
We know in the meantime that artificial
light levels at night have reached insane intensity. The
candle, the intensity of the candle for example, is
absolutely sufficient for orientation.
If you have to read in the evening or at night time, my
personal favorite light source for reading tasks is a
low-voltage incandescent halogen lamp, which is operated on
a DC transformer. Direct current will eliminate all the
dirty electricity and it will eliminate all the flicker.
There are transformers available where you can adjust the
output between 6 volts and 12 volts.
As long as it's direct
current, there is no flicker, there is no dirty electricity,
and you are able to dim the halogen lamp into a color
temperature which is comparable to candle light even.
This
is the softest, the healthiest electric light you can get at
the moment. No LED will ever be so energy efficient, because
you were talking several times about the energy efficiency.
If we extend the spectral range to the non-visible part of
the near-infrared radiation - let's say if you would
calculate the energy efficiency from 400 nanometers to a
1,400 nanometers, then the light source with the highest
energy efficiency, would you like to make an educated guess?
JM: Probably the shorter wavelengths, I would think.
AW: The light source with the highest efficiency in
the range from 400 nanometers to 1,400 nanometers would be
-
JM: Would be incandescent.
AW: Halogen incandescent lamp.
JM: Yeah. Many people - I didn't know this either until you
explained it to me that halogen is an incandescent lamp.
It's an analog thermal light source. It's not digital.
AW: Yes. It is up to 100 percent more energy efficient
compared to the standard incandescent lamp, so you have
better energy use.
You have less energy waste. And if you
take into account the near-infrared radiation, and if you
decide for your eyes, for example, for light hygiene for
your retina, that you want to have these long wavelengths.
In addition to the visible part, then the halogen, the low
voltage halogen lamp, is the best and it reaches 4,000,
5,000 and in a dim stage, even 10,000 hours of lamp life.
JM: Is that on halogen - the AC halogen, or only with
DC?
AW: It is only with DC because the AC halogen... No. We only
can talk about high voltage and low voltage. Because you can
operate the incandescent lamp - the incandescent lamp can be
operated on AC as well as on DC.
But if you operate the
low-voltage incandescent lamp on DC, you have zero dirty
electricity. If you operate it on AC, you have 20 times more
dirty electricity compared to the AC high-voltage one.
JM: Okay.
AW: It's a little bit complicated. It's physicists'
stuff. But AC, alternating current, always produces dirty
electricity. And in the low-voltage ones, you need much more
amperage. It's the currents and the other factor in...
JM: The resistance?
AW: No. The resistance, the current, the volt, and the
ampere.
JM: Okay.
AW: So and the ampere value raises at a factor of 10 if you
are working with AC on low- voltage.
The best is low-voltage
halogen lamps with DC, because those are ones which reach
5,000 and even more hours of lamp life.
JM: Okay. That gives us a pretty broad picture of some
practical information we can now use to light ourselves at
night. I mean, ideally.
This is why our ancestors were so
much healthier. Not only did they have more access to better
food typically, they weren't processed or commercialized,
they had better biological healthy analog light sources that
were thermally based, not digitally based.
That would be the
best. Now, the other danger that most of us are exposed to
pretty much every waking hour is our devices. Our computer
screens, our tablets, our phones.
They're almost all LED
based and there's a lot of components here - and our
e-readers too.
(-----1:00:00-----)
I use an e-book reader on the beach. It's called Kindle, the
e-ink reader.
Although it has an LED backlight that you can
use at night, you can turn it all the way off and just look
at the sunlight, which is reflected. I think that's really
the ideal type of computer monitor that you could use. They
are made - I'm in the process of trying to find one.
But in
the meantime, I just recently purchased a notebook that has
an organic light-emitting diode (OLED) screen and not an LED
monitor.
It's really interesting because I'm a firm believer that you
should use f.lux on your monitor not just at night.
The
default setting for that is to just come on at sunset, and
yes that's helpful. It's probably the time that it's most
important. But I keep it on all the time.
There's no way I'm
going to expose myself to that type of bright intensity
light. But even though I can change a color temperature, it
still has this digital pulse faking out my biology.
I want you to talk about the difference between,
...and also if we are outside and we have this
LED or OLED screen and we've got the f.lux on, what I find
personally is that I don't need to keep it all down at 2,700
degrees.
I can essentially deactivate f.lux and put it up to
6,500 degrees if I need more light because you got all this
light coming in. It sort of drowns out that monitor. I'm
wondering if that's biologically healthy.
A lot of stuff at
you but these are really important questions.
AW: Talking about our digital screens, I prefer personally
to reduce the color temperature, the correlated color
temperature, also during the daytime for my notebook.
As you
already said, the e-ink would be a perfect solution because
in this case, you can exactly control the quality of the
incident light. By that, you control the quality of the
light which will be reflected by the e-ink display. The
problem is for motion pictures. It's just too slow. It's
good for reading tasks but it's not good for watching videos
or so.
The f.lux is one option you have. It depends a bit on the
quality of your screen and the settings you are using if it
really comparable to effective extinction of the blue light
component, and what you could achieve with screen blue light
protection glasses.
Because they allow to eliminate the
short wavelengths even better.
The OLEDs technology, I'm not
sure if the color is really stable in every angle you can
look at the display.
But definitely, if you have the screen technology where
black is really black, then you have less radiation coming
into your eyes and the OLEDs technology is able to provide
this. So the high contrasts between the black and white, all
the black areas in the Thin-film-transistor (TFT) screen or
the standard screen are not really black.
They are also
emitting radiation, also emitting shortwave radiation. The OLED screen only emits where you see light, where there is
black on the screen, there is no light.
This might be
preferable as long as you have no problems with the looking
angle.
JM: It's magnificent. I really love my new notebook.
What
I've noticed - I've compared the notebook side by side in
the same settings outside and I put f.lux on both at 2,700
degrees Kelvin, which is an advanced setting that you have
to go. It's in the upper right hand corner. It only goes
down to 3,500 normally, which is the color temperature of
halogen.
You have to go to 2,700 and do it in advanced
setting. But when you do that, Dr. Wunsch, it's amazing.
The OLED is actually the same color you would see when you put
on the blue blockers. And then the LED conventional notebook
is like, you can tell it's like a blue light. You can see it
night as day when you compare it. It looks orange when you
have it by itself, but when you compare it with an OLED,
there's a dramatic difference.
I'm also wondering, do you minimize the digital impact on
the cell biology that you were referring to earlier with the OLED versions and LED?
AW: This depends again on the technology of dimming.
I bet
that you can get OLEDs displays with the pulse-width
modulation dimming technology and you can also get OLED
screens with the improved dimming technology, where you have
reduced flicker or even eliminated flicker activity. These
are the factors you would have to look at, and this is not
so easy.
Normally, you would need a flicker meter when you
purchase or when you buy your notebook, and you should
check - this is a recommendation - you should check every
electrical lighting appliance before you buy it and bring it
into your home.
JM: You can get a flicker meter or can you use the
slow-motion mode of your cellphone, the more advanced
cellphones, to do that detection?
AW: I would say if you are able to compare your smartphone
to the reading of a flicker meter, then you can get a kind
of confirmation of how reliable your smartphone is in
detecting flicker.
But in the slow-mo mode, you normally
should be able to find out if there is a significant flicker
level in the light source present.
JM: Maybe you can give us some links where we can pick up
these flicker meters. I imagine they're not terribly
expensive.
AW: They are not terribly expensive. You can get flicker
- not meters - flicker detectors, which are, in my
understanding, are even better than the meters, because if
you get a certain value, it tells nothing.
But if you hear
an awful buzz or an awful noise, this makes absolutely clear
that your light source is flickering and distributing dirty
photons.
JM: In one of our earlier discussions, you actually told me
about one of that you invented, didn't you? Do you actually
have that for sale?
AW: I built something I think 12 or 15 years ago, because I
just wanted to know what's going on around me. I still
manufacture this.
But hopefully, there will be an improved
version soon. I don't know when it will be ready, but I'm
working on that.
(-----1:10:00-----)
JM: Okay, good.
AW: I mean it's not around 100 dollars. It should be around
30 to 40 dollars or so.
JM: As I mentioned in the beginning, if it's not obvious by
now, you are just a wealth of information in this area.
We're definitely going to have you on multiple times to
expand on this because there's so much information that
people need to know to absolutely have a better
understanding.
What I really love about some of your videos - we're going
to have links to those videos, the English ones - is that
you put this in a historical framework, which is just so
magnificent because once you understand the historical
framework, you can start to begin to develop a deeper
appreciation of how we veered on this path toward literally
sabotaging ourselves with what we think is useful
technology.
But it has these enormous downstream biological
side effects that we're exposing ourselves to.
With knowledge, we can proactively prevent most of this. But
I think, to summarize this, because we're just kind of
wrapping up, we really need to limit our exposure to this
blue light. And it's not, not, not just at night, it's all
day long.
That's why you want to avoid these
exposures. It's really important that you do that. Get the
incandescent lights at night, blue blockers. Remember, it's
so simple. As soon as the sun sets, I don't think you
disagree with this, you put on those blue blockers.
Nothing
beats it. Don't take them off unless there's an emergency or
you have to read something really carefully. It's just that
you're sabotaging yourself when you don't.
You're increasing your reactive oxygen species and your
retina pigment epithelium. You're producing your production
melatonin not only in
your pineal gland, but also in your
retina and other tissues. It's just so critical, and we
never even touched on the other hormonal components.
That's
a whole other interview. I think that's about all we have
time for. But I want you to summarize things from your
perspective and emphasize any points you'd like to.
AW: I think you just made a perfect summary of the most
important aspects.
One thing to probably add or emphasize
again, it's not the blue light coming from the sun itself
which we should be concerned about. It's the blue light, the
singular HEV or high energy visual light, which comes from
cold energy-efficient light sources.
This is what causes the
problem, not the blue light which comes together with longer
wavelengths in a kind of natural cocktail. So the light
surrogates from non-thermal light sources. These are
problems and you have to be clever to avoid these Trojan
horses.
If you want to make it sure, stay with the candles,
stay with the incandescents.
JM: Yeah. The Trojan horses are really pernicious. Let me
just - as you were mentioning that, it reminded me of one
important one that most people don't realize, and these are
the people who need it most. These are people with impaired
and damaged vision.
They go to their optometrists, they go
to their ophthalmologists, and what do they do? They dilate
their eyes. They open them up so you have no control.
And
then what do they do next? They shine a high blue light
spectrum LED with no balanced red or infrared right onto the
back of the retina. Now couldn't that be a worse
prescription for damaging the retina? And they are clueless.
I definitely want you to comment on that, but there is a
solution. Don't worry. Don't get upset. Just have them shine
that through one of those blue blocking glasses and it's
less dangerous.
Can you comment on that because a lot of
people are exposing their retinas to these dangerous
radiations from their eye-care professionals?
AW: Sometimes, if I want to see if the lens of the eye of
the patient is affected from cataracts, the blue LED light
for just a second or so is very helpful because you can see
kind of fluorescent effects in the lens.
For diagnose
purposes, it might be helpful. But of course, when we look
at the exposure times, I think the higher impact comes from
these Trojan horses - how do you pronounce it?
JM: Trojan. Trojan.
AW: The Trojan horses we invited into our households and
from the light sources we are looking into continuously on a
permanent basis, like our displays, smart phones, tablets,
and so.
JM: Yeah, the chronic exposure is bad but I would have
thought because of the high intensity of the illumination
and the fact that the iris is maximally dilated or
constricted, and it is such an impact on the retina that
there's acute exposure.
It's kind of like looking at an arc
welding light, which can cause blindness or just being up on
a mountain at 15,000 feet and taking off your goggles and
getting blind.
I would imagine that that acute high
intensity exposure would be highly dangerous and would be
ameliorated quite significantly if they were just to filter
it with a blue blocking sunglass.
AW: Yeah. To reduce the exposure to the lowest level, which
is possible, is for sure the best strategy.
JM: Okay, alright. Thank you so much. I am sure this is
going to help so many people because, again, age-related
macular degeneration is a serious, serious issue.
I'm
telling you, I just hope and pray to God that we can spread
this message far and wide. Share this video with every one
of your friends and family because they need to know.
Otherwise, we are going to have... We already have an
epidemic of obesity. We have an epidemic of heart disease.
Cancer. Alzheimer's. We're going to have an epidemic of
blindness unless we can get ourselves away from these
chronic unopposed blue digital light sources, especially at
night.
You've got to spread this message far and wide if we want to
prevent this blindness epidemic. Just like cigarettes, it's
not going to happen tomorrow, next week, next month, or next
year. It's this chronic exposure.
We need decades of this
exposure before we're going to see it. For most of us, it's
less than 10 years that we've had this exposure. We're not
going to see it for a while.
But it doesn't diminish the
danger and the damage any less. So please spread this
message far and wide.
We are definitely having you back on again, Dr. Wunsch,
because you've got so much incredible information to share
and there's going to be a lot of questions on this too.
Thank you so much.
AW: Thank you very much, Dr. Mercola.