Blue Light affects your brain...may explain some things on Pandora

Started by Seze Mune, February 21, 2012, 10:21:22 PM

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'Oma Tirea

Quote from: Seze Mune on February 21, 2012, 10:21:22 PM
It turns out that blue is an important color.  Within human eyes - even if they're blind - lie blue photoreceptors we're only just beginning to learn about.  Blue light is particularly effective at setting the circadian rhythm in organisms, and not just mammals.  It is also a powerful mood regulator, perhaps even better than white light for treating Seasonal Affective Disorder.  Blue light elevates body temperature and heart rate and reduces sleepiness, contrary to what you might expect.  Blue lights seem to help memory too, as well as boosting your ability to respond to sound and stay alert.  Bulimia and anxiety might be beneficially affected by short wavelength blue light.

I remember seeing red lights in my local planetarium.  I recall that blue appears darker than red and wondered why the lights weren't blue or purple instead.  The answer is that blue does indeed wake up the eye... and actually makes for a mildly unpleasant (or worse yet, distracting) experience.

I kinda find it hard to believe that blue light would elevate body temperature and heart rate.  I find shades of red do that better.  Supposedly it's what one associates with a particular color.

Anyway, know any positive and negative effects of the other colors on the spectrum?

Quote from: Seze Mune on February 22, 2012, 10:53:10 PM
This also makes me wonder: if normal incandescent lighting is yellowish, then where is computer light on the spectrum....does it have one underlying color or is it just dependent on the colors on the monitor?

It's dependent and varies.  One thing is certain, however: it's more annoying to the eye than incandescent and natural lighting no matter what color is on the screen, thanks to fluorescent flashiness.

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ÌTXTSTXRR!!

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`Eylan Ayfalulukanä

Íts interesting to note that incandescent light (and flame-based light) both emit light by 'blackbody radiation'-- the electromagentic radiation given off by a heated body. This arises from molecular motion, and tends to be broadband in nature.

Virtually all other light (Flourescent, LED, Discharge) we use cones from energy transitions caused in atoms that have been excited by another source of energy. This light is characterized by having narrow emission wavelength bands.

I guess my eyes are going because I enjoy working under flourescent lighting, and eat a mostly meat diet. (I do know my vitamin supplement contains luetin.)

Yawey ngahu!
pamrel si ro [email protected]

Seze Mune

Yes, this is very interesting! It's somewhat confusing to me because if blackbody radiation is given off by a heated body, does that mean I give it off too, or are we using 'body' in a different sense?  I assume the heat in my own body comes from molecular motion.  It makes me wonder if this might what people see when they claim to see auras.

I find fluorescent lights disturbing and prefer incandescent.  Or natural light.  It's the dinosaur in me, I guess.

And as for food, I'm trying to increase my vegetable and fruit consumption, but have a long way to go to make kale palatable.  :P

Ateyo Te Syaksyuk

Does this anything to do with the choice of KMART using it's  BLUE LIGHT SPECIAL?!?!  :-\

(There is a large chain of department stores with a gimmick: They will flask a blue light throughout the store and announce, "ATTENTION K MART SHOPPERS,  THE BLUE LIGHT SPECIAL IS LOCATED ON AISLE ..."

(Ahh childhood memories!  Luckily, Mom disliked mob scenes so we stopped shopping there.)

`Eylan Ayfalulukanä

Quote from: Seze Mune on February 29, 2012, 10:21:56 PM
Yes, this is very interesting! It's somewhat confusing to me because if blackbody radiation is given off by a heated body, does that mean I give it off too, or are we using 'body' in a different sense?  I assume the heat in my own body comes from molecular motion.  It makes me wonder if this might what people see when they claim to see auras.

Yes, your (and my, and the post reader's) bodies act as 'blackbidies' and emit radiation based on their temperature. A true blackbody absorbs all energy it intercepts, and they are mostly theoretical.


Quote from: Seze Mune
I find fluorescent lights disturbing and prefer incandescent.  Or natural light.  It's the dinosaur in me, I guess.

I like the good quality (=higher color temperature, say around 3200K (TV/theatrical quartz lighting) which BTW represents light given off by a blackbody heated to the indicated temperature.)

Quote from: Seze Mune
And as for food, I'm trying to increase my vegetable and fruit consumption, but have a long way to go to make kale palatable.  :P

I find fruit and vegetables (except the ones that are 'bad' for you) about as palatable as the stomach contents of the cow that provided that night's dinner. I also find I feel better and perform much better (and lose weight) on a very low carbohydrate diet. I can also eat meat, and only meat, morning, noon and night, something a lot of people would not enjoy doing.

Yawey ngahu!
pamrel si ro [email protected]

Niri Te

I am the same way, 'Eylan, I eat WAAAAY more meat than anything else, and at 62, am in INCREDIBLE shape.
Cats, Hawks, and other carnivores are usually a lot more muscular than their prey.
Niri Te
Tokx alu tawtute, Tirea Le Na'vi

`Eylan Ayfalulukanä

I read a very interesting book that came out a few years back, called 'The Metabolic Typing Diet. That book explained that there is a continuim of body types from 'Protein biased' to Çarbohydrate biased'. People with a strong protein bias need to eat more like a cat-- meat, guts, etc. And red meat is the best for them. They don't need to eat much in the way of carbohydrates, as their bodies derive their energy from protein and fat.  On the other end, the carbohydrate biased people needed to eat lots of complex carbs, and light proteins-- fish, eggs, chicken, some dairy products. For them, the protein is needed for body construction and maintenance, but they derive most of their energy from burning carbs. Grains and vegetables and fruits are the preferred foods. This is the traditional 'low fat'diet. In the middle are a lot of folks that can eat a 'normal, vaired diet', with some foods from éither end'. Everyone needs to limit their intake of simple carbs, alcohol, processed meats, etc.

In any case, this book validates many of the 'fad diets', and shows that these diets are appropriate for some, but not for all (or even for most) people. There is a test you can take in the book that will point you in the direction you should go. It was one of the most important books I ever read.

Yawey ngahu!
pamrel si ro [email protected]

Seze Mune

Quote from: `Eylan Ayfalulukanä on March 01, 2012, 11:09:34 PM
Quote from: Seze Mune on February 29, 2012, 10:21:56 PM
Yes, this is very interesting! It's somewhat confusing to me because if blackbody radiation is given off by a heated body, does that mean I give it off too, or are we using 'body' in a different sense?  I assume the heat in my own body comes from molecular motion.  It makes me wonder if this might what people see when they claim to see auras.

Yes, your (and my, and the post reader's) bodies act as 'blackbodies' and emit radiation based on their temperature. A true blackbody absorbs all energy it intercepts, and they are mostly theoretical.

Sounds like a black hole to me. Or the federal government.  Take your pick.

Quote from: `Eylan Ayfalulukanä on March 01, 2012, 11:09:34 PM
Quote from: Seze Mune
I find fluorescent lights disturbing and prefer incandescent.  Or natural light.  It's the dinosaur in me, I guess.

I like the good quality (=higher color temperature, say around 3200K (TV/theatrical quartz lighting) which BTW represents light given off by a blackbody heated to the indicated temperature.)

I don't often find myself on a stage.  Unless you're talking in Shakespearean terms ("All the world's a stage...") :)

Quote from: `Eylan Ayfalulukanä on March 01, 2012, 11:09:34 PM
Quote from: Seze Mune
And as for food, I'm trying to increase my vegetable and fruit consumption, but have a long way to go to make kale palatable.  :P

I find fruit and vegetables (except the ones that are 'bad' for you) about as palatable as the stomach contents of the cow that provided that night's dinner. I also find I feel better and perform much better (and lose weight) on a very low carbohydrate diet. I can also eat meat, and only meat, morning, noon and night, something a lot of people would not enjoy doing.

The stomach contents of a cow are pretty much what milk is made of.  That always disgusted me as a kid.  I don't like milk much to this day.  And you're right, I wouldn't do well on a mostly meat diet.  I'm still experimenting with the vegetable one, although I am NOT a vegan and not a 'real' vegetarian.  I still eat some meat.  I'm an empiricist.  I gotta find out what drives my engine the best.

Seze Mune

Quote from: `Eylan Ayfalulukanä on March 02, 2012, 02:49:23 PM
I read a very interesting book that came out a few years back, called 'The Metabolic Typing Diet. That book explained that there is a continuim of body types from 'Protein biased' to Çarbohydrate biased'. People with a strong protein bias need to eat more like a cat-- meat, guts, etc. And red meat is the best for them. They don't need to eat much in the way of carbohydrates, as their bodies derive their energy from protein and fat.  On the other end, the carbohydrate biased people needed to eat lots of complex carbs, and light proteins-- fish, eggs, chicken, some dairy products. For them, the protein is needed for body construction and maintenance, but they derive most of their energy from burning carbs. Grains and vegetables and fruits are the preferred foods. This is the traditional 'low fat'diet. In the middle are a lot of folks that can eat a 'normal, vaired diet', with some foods from éither end'. Everyone needs to limit their intake of simple carbs, alcohol, processed meats, etc.

In any case, this book validates many of the 'fad diets', and shows that these diets are appropriate for some, but not for all (or even for most) people. There is a test you can take in the book that will point you in the direction you should go. It was one of the most important books I ever read.

I've heard of the Blood Type Diet, but never read it.  This could be somewhat similar to yours.

'Oma Tirea

Quote from: Seze Mune on March 02, 2012, 10:13:07 PM
Quote from: `Eylan Ayfalulukanä on March 02, 2012, 02:49:23 PM
I read a very interesting book that came out a few years back, called 'The Metabolic Typing Diet. That book explained that there is a continuim of body types from 'Protein biased' to Çarbohydrate biased'. People with a strong protein bias need to eat more like a cat-- meat, guts, etc. And red meat is the best for them. They don't need to eat much in the way of carbohydrates, as their bodies derive their energy from protein and fat.  On the other end, the carbohydrate biased people needed to eat lots of complex carbs, and light proteins-- fish, eggs, chicken, some dairy products. For them, the protein is needed for body construction and maintenance, but they derive most of their energy from burning carbs. Grains and vegetables and fruits are the preferred foods. This is the traditional 'low fat'diet. In the middle are a lot of folks that can eat a 'normal, vaired diet', with some foods from éither end'. Everyone needs to limit their intake of simple carbs, alcohol, processed meats, etc.

In any case, this book validates many of the 'fad diets', and shows that these diets are appropriate for some, but not for all (or even for most) people. There is a test you can take in the book that will point you in the direction you should go. It was one of the most important books I ever read.

I've heard of the Blood Type Diet, but never read it.  This could be somewhat similar to yours.

I've heard about that.  It is recommended that all 4 types eat a healthy dose of fruits and veggies.  Some like leafy greens are highly beneficial for all types.  On the other hand, oranges aren't a good fruit for any type.

I've also noted the following: Meats are best suited for Type O while grains are best suited for Type A (NB Wheat, a ubiquitous grain, is not good for any type).  Interestingly, meats aren't good for Type A, and grains aren't good for Type O.  Dairy isn't good for either Type O or A, but is better suited for Type B.  There are also numerous other exceptions....

/offtopic

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ÌTXTSTXRR!!

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Seze Mune

I'm a type A who eats more veggies and fruits than anything.  Apparently this is good for me according to the blood type diet.  Who knew?!   ;)

/OT