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#133 Andrew Huberman: The Science of Small Changes

The Knowledge Project with Shane Parrish

How to Get Bright Light in Your Eyes Without Sunglasses

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Every cell in your body has a 24 hour clock, meaning there's a timer that goes from zero to 24 and then repeats. The way tat those clocks are ed into coherent action is from a signal from this brain structure called the hypothalmus. And the only way that signal can arrive properly is if you were getting light to trigger the hypohthalmus to say, ok, it's the start of the day. Many people, including me, wake up before the sun is out. But sunlight is really the key.

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