Andrew Huberman· PhD
longer I'm awake, there is a significantly greater pressure for deep sleep.
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longer I'm awake, there is a significantly greater pressure for deep sleep.
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it is called proc or we sometimes call it as process s or sleep pressure so you've got your Cadian Rhythm on the one hand going up and down every 24 hours but then you've got this funny thing called Sleep pressure sleep pressure comes down to a chemical that is called adenosine so from the moment that you and I woke up this morning and everyone listening a chemical has been building up in your brain that chemical is called adenosine and the more of it that builds up the sleepier and sleepier you will feel
but also don't forget that at that moment your sleep pressure your adenosine is also now at its peak you've been awake for now almost 6 hours so the moment when your Cadian rhythm is on its nice downward swing and your highest in your levels of adenosine in your sleep pressure that's the moment truly that will determine okay now is when I feel nice and sleepy
so process s is sleep homeostasis and that's this sleep pressure idea that we are working on right and every day we build up sleep pressure until it's bedtime and then we capitulate we fall asleep and then we you know our our sleep pressure drains throughout the night while we sleep and then in the morning we are full of you know then we we build it up again the next day and this is just a Denine building up yeah think about that think about it that way
And the reason not only it's giving like two levels of messaging, "Play and play at this level," is because the wake network is always acting proportional to how much sleep pressure you've built up. Sleep pressure is something that builds from the moment you wake up, and it keeps building, building, building, until you go to sleep, and the wake network is counteracting that all day long. And at the end of the day, the wake network goes to sleep, or turns off, and then you've got all this unopposed sleep pressure, and that will initiate sleep and keep you asleep for the rest of the night, so consolidated as well.
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