
A new skill keeps improving after the session, mostly while you sleep. Practise it hard, then get a full night before you judge it. Don't decide "I can't do it" on the same day: test it again tomorrow.
P Evidence: promising. Good studies, but small or few. Use it and keep checking.
After a night of sleep, a practised motor skill got about 20% faster with no loss of accuracy; the same hours awake gave no gain (Walker et al. 2002, 🟡) · via Andrew Huberman · see 18: sleep is training.
Not medical, legal or financial advice.
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