Jonathan Jarecki

So they actually took muscle biopsies, basically what that means is they carved out a piece of these people's muscles and they looked at the circadian rhythm of these muscles.

And they also showed improvement in that.

And so clearly this was circadian in nature.

So the other two studies that we were looking at was simply adding red light or sunlight to the body improves glucose metabolism and glucose levels.

But this seemed to be circadian in nature.

So they were aligning their circadian system and they were having improved metabolic function.

Now, a hypothesis that I have

from this study as well, is not only do I think

the aligning their circadian rhythm helped, which definitely did, obviously.

But also, through the window, again, they were getting more red light, and they actually showed, they used a spectrometer, which is basically a device that reads the spectrum of light coming from a device.

They used a spectrometer, and they tested the artificially lit environment, and then they tested the window environment.

And you can see in the study that the window environment did have way more red light than the artificially lit environment.

the artificially lit environment was very concentrated in the short blue wavelengths of light, which is typical from LEDs and fluorescent light bulbs.

But these participants that were under the window, they were getting exposed to more red and infrared light, which could have helped their mitochondria, could have helped their metabolic function that way.

So three really interesting human studies that all point to

Sunlight, you know, sunlight, which is abundant in infrared and red light, you know, and red light.

So if you want, you know, like you said, there is a time and place for red light therapy, isolated red light.

I encourage people to opt for a red incandescent light bulb because that's very broadband.

Red light therapy uses very short wavelength or very, sorry, very narrow band red light.

which is great because I mean, that's what they are using in these studies and they're showing benefits.