Habitual coffee consumption poorly correlates with sleep quality and daytime sleepiness: A cross-sectional study - PubMed
14 hours ago
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- Coffee is the second most common drink in the world after water, making caffeine one of the most used psychoactive substances.
- Caffeine interacts with adenosine receptors, which are involved in sleep regulation, but the effects of chronic caffeine exposure are less understood.
- A study of 30,154 individuals in the Swedish Cardiopulmonary Bioimage Study (SCAPIS) found very low association between habitual coffee consumption and sleep habits or daytime sleepiness.
- The results suggest that coffee may have less impact on sleep than previously thought, possibly due to adaptive mechanisms in the adenosine system.
- The study found no significant correlation between different degrees of coffee consumption and sleep quality or perceived sleepiness.