Ben Greenfield explains how to use light, movement, food, and temperature to shift your natural sleep rhythm to match social schedules. He calls these signals zeitgebers and argues they can override your chronotype so you don't have to wake at 4 a.m. just because your body wants to.
My issue with that is how practical does that apply to a modern social environment in which, you know, let's say you are an early bird. A lot of times modern life, social life, family does not allow you to go to bed at 8pm and get up at 4am every day. And that's where I think things like lighting, so called zeitgeivers, right? Timekeepers. Incorporating those wisely, light, movement, food, temperature, can allow you to almost like override your natural chronobiology and still kind of operate in a modern social environment. Because I just think the chronobiology is cool, but it's impractical for a lot of people if their lifestyle doesn't allow them to sleep. According to the chronology.
This is a light.
Spectrometer, okay?
So you can see that's the light that this, that this light is producing. Actually you've got the blue spectrum and you want blue light during the day because that helps you build serotonin. And so you've got that. And it's got a lot of red though as well. Now what it's missing is the infrared, which we're going to address later.
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