Andrew Huberman on how to sleep better
Huberman argues that good sleep is engineered during the waking day: anchor the cortisol rhythm with morning sunlight, delay caffeine, and use evening temperature shifts to trigger sleep onset, all because sleep pressure is built by adenosine while its timing is set by the cortisol-melatonin clock. He also warns that alcohol degrades deep and REM sleep, and offers tools for nights that go badly: an eye-movement routine to fall back asleep and yoga nidra to recover lost sleep the next day.
9 points · 4 appearances · 2020–2026
How the view evolved
Caffeine tolerance is highly individual → Delay caffeine 90 to 120 minutes
In 2021 Huberman framed caffeine timing as highly individual and noted he personally drinks it as late as 4-5pm and sleeps fine; by the 2026 toolkit he gives a concrete protocol: delay caffeine to 90-120 minutes after waking.
Up next
2022–2026
“You want this peak in cortisol as high as possible in the first 60 minutes of your day. Everyone thinks you want low cortisol, but here's the deal. High cortisol in the early part of your day is what provides for elevated mood, focus, attention, your ability to learn. It's also what establishes low cortisol in the afternoon and at night which is a requirement for falling and staying asleep.”
2020–2026 · changed view
“how much dopamine is in our system at any one time compared to how much dopamine was in our system a few minutes ago, that dictates your so-called quality of life and your desire to pursue things. This is important. Your experience of life and your level of motivation and drive depends on how much dopamine you have relative to your recent experience. This is why when you repeatedly engage in something that you enjoy, your threshold for enjoyment goes up and up and up.”
2020–2026
“What is cortisol? We I should have mentioned this earlier. What is cortisol? Is it a stress hormone? No. It's a hormone that's released during stress. But cortisol's job is not to deal with stress. Cortisol's job is to mobilize energy in the body. When cortisol goes up, glucose is mobilized and other fuels, too.”
2020–2026 · changed view
“When we decide to focus what the brain really does is it switches on a set of circuits then all the frontal cortex and nucleus basalis and some others and it's trying to understand duration, how long something's gonna last, path, what's gonna happen, and outcome, what ultimately is gonna happen. So duration, path and outcome. You know, the events of early 2020 are a good example of this. One of the reasons why it's so exhausting to be alive in 2020, is because we are now having to pay attention to duration, path and outcome. How long is this thing gonna last? When are, you know, when are they gonna open up all businesses? Did I touch that door handle? Does it matter? You know, who are the experts? Are there any experts? You know, there are a lot of questions whereas normally, we can just move through life without having to do all that analysis.”