Drinking coffee close to bedtime does NOT stop you sleeping: It's alcohol and nicotine that keep you up, study finds
Author: Mia De Graaf
If you're concerned about getting a good night's sleep, you're better off having an espresso than a night cap.
That's according to a surprising new study that found drinking alcohol within four hours of sleep is far more likely to disrupt your sleep than caffeine.
Nicotine - whether from smoking cigarettes or vaping - was even more strongly associated with insomnia, particularly if vaped or smoked in the evening.
As for coffee, the researchers at Florida Atlantic University, Harvard, Emory, and Mississippi Medical Center found no significant link to sleeplessness.
The study, which followed 785 African Americans for 14 years, is particularly enlightening for African Americans, who disproportionately suffer from insomnia, sleep apnea and other sleep-related disorders compared to others.
The research is one of the largest longitudinal studies on how alcohol, caffeine and smoking at night affects sleep.
None of the people in the study suffered from clinical sleep disorders.
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