Report
Cannabis use objectively worsens sleep quality despite users perceiving improvement, JAMA study shows
Analysis of 1,266 middle-aged adults using wrist actigraphy found greater cannabis use linked to lower sleep efficiency, more fragmentation, and longer wake-after-sleep-onset. However, users reported no perceived difference in sleep quality.
TLDR
The disconnect between objective sleep degradation and subjective perception challenges the widespread use of cannabis as a sleep aid. This finding highlights how personal experience can mask actual physiological effects, informing both medical advice and public health messaging.
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