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whygetfat / Why would I get fat?
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2024-12-07 18:59:51

whygetfat on Nostr: Irene Lyon: "So let's dig apart this sunrise thing a little bit. [...] What is that ...

Irene Lyon: "So let's dig apart this sunrise thing a little bit. [...] What is that morning light doing? What is that morning light? And what is going on in our brain and nervous system when it actually goes into the eyes?"

Carrie Bennett: "It's a beautiful pathway. It's really, really crazy to think about light as containing information that our body uses. But we've all seen it. Anytime you've shone light through a prism and you see the different colors, that's different what are called wavelengths of light.

"A wavelength of light is just information, the color contains information. So in that light are little packets of light called photons. And when we're outside, nature laid this out beautifully, because it doesn't stay the same. The colors are not the same all the time. From sunrise to sunset they shift and they vary in a very predictable way.

"What you have at sunrise is you actually don't have very much of the blue. You don't have any ultraviolet, none of those colors of light, none of the UV light. At sunrise, it's really heavy in the red and infrared actually. That's a portion of light that we can't even see. But it's heavy in the red and the infrared. And that kind of is a calming, anyone who's been outside at dawn, it's very calming.

"Those soothing colors of light are what really preps the body then to wake up to the more energizing colors of light that come a little bit later. Then as soon as the sun breaks the horizon, you get a much more intense jolt of blue light.

"But it's this perfect blend of red and blue that actually gets captured by the backs of my eyes. I've got like little catcher's mitts for photons in the backs of my eyes. They're just waiting to suck this light in.

"Depending on the blend that gets caught, how much blue and how much red, it can communicate to this clock in my brain, called the suprachiasmatic nucleus, and my whole body knows then exactly what time of day it is.

"Then as the colors shift and change, you get the blue, you get the violet, indigo violet, ultraviolet colors, that's when the sun's at the high point of the sky. You've got all the colors, and then they predictably go away. The colors go away until at sunset, it really mirrors what you're receiving at dawn.

"All living creatures have been entrained to this beautiful change of colors in the form of the wavelengths of light from sunrise to sunset. And then we've been able to optimize our biological function, decide when to do different tasks based on what light frequencies are there." —Carrie Bennett with Irene Lyon @ 21:51–25:04 https://youtu.be/_rGxeExQYjs&t=1312
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