Andrew Huberman· PhD
It’s clear that learning (anything) involves 1) focus & alertness, followed by 2) deep rest (ideally sleep) but also that 3) short 20-30 min naps or non-sleep deep rest (NSDR) accelerate learning.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
It’s clear that learning (anything) involves 1) focus & alertness, followed by 2) deep rest (ideally sleep) but also that 3) short 20-30 min naps or non-sleep deep rest (NSDR) accelerate learning.
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NSDR has been shown to increase rates of learning when done for 20 minute bouts for a proxy- to match an approximately 90 minute about of learning.