Transcript excerpt from a March 28, 2025 YouTube conversation (Ben Greenfield and another speaker) discussing light exposure and its effects on sleep. In this chunk the speakers note that apparent plentiful natural visible light can nevertheless be blocking infrared wavelengths. The broader work examines sleep consistency versus quantity.
Now, what a lot of people don't realize is they think, oh, I've got plenty of natural light. I'm getting a lot because it's, you know, I've got all these windows, and you've got a lot of windows in this space, and you're getting a lot of natural visible light.
Right.
But it is blocking infrared.
Did you know that? There was a recent study that came out, and this backs up other research, that the sleep consistency is even more important than how long you sleep. Like, going to like. It is better for you to get like six hours of sleep and go to bed at 11pm and 5am every day than to get like seven hours, but go to bed at 10pm some nights and 8pm other nights, midnight other nights.
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