Bryan Johnson· Author
Exercise within 6–2 hours of bedtime associated with shorter night sleep, the higher the intensity the shorter the sleep duration.
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Exercise within 6–2 hours of bedtime associated with shorter night sleep, the higher the intensity the shorter the sleep duration.
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Maximal intensity at 2 hours before bed = 36-minute delay in falling asleep vs. light exercise.
The highest level of exercise intensity correlated with a 1 minute average decreased sleep latency, meaning it slightly but significantly help participants fall asleep faster (2).
REM sleep also decreased by an average of 1.95%, with a non-significant increase in slow-wave deep sleep of 0.84%.
Only REM sleep decreased by 2.34%, not clinically meaningful.
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