#199 - Andrew Huberman
The Nine Club With Chris Roberts
00:00
Why Do I Yawning When I'm Going to Sleep?
You're going to learn best by focusing on something for 90 minutes. The yawn is actually a little bit like the physiological side, it's an attempt to blow off carbon dioxide. Dogs have an anxious yawn and then they also have a real yawn. There are some things that can give you a heightened state of alertness in your brain called alpha GPC.
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