Question of the week: When is your last caffeine of the day?
Reddit r/sleep · 1h ago
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Wellness · covered by 10 outlets this week · tracked since 2026-10-27
Press: 7 mainstream 2 specialist 18 independent outlet-days
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class and is the most commonly consumed psychoactive drug globally. Wikipedia ↗
Written by the Alivewire editors from the coverage below, 19h ago. Not medical advice; how the ratings work.