health
How soon to stop caffeine before bed is earlier than you think

Caffeine can make it more difficult to fall asleep and stay asleep since it competes with adenosine, a naturally occurring chemical in the body that promotes drowsiness.
Your afternoon pick-me-up may have some unintended consequences.
Caffeine can make it more difficult to fall asleep and stay asleep since it competes with adenosine, a naturally occurring chemical in the body that promotes drowsiness.
Most experts ag... [3031 chars]
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