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Essentials: The Science & Practice of Perfecting Your Sleep

Huberman Lab

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Sleep Quality: The Impact of Light, Caffeine, and Substances

This chapter explores the critical role of natural light exposure and its effects on circadian rhythms and sleep quality. It discusses the timing and dosage of caffeine, emphasizing optimal cutoff times for consumption to avoid sleep disruptions. Additionally, the chapter examines the influences of alcohol and THC on sleep patterns, particularly their effects on REM sleep and the implications for mental health.

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