Evening Caffeine Disrupts Sleep in Young Adults: New Study Sparks Thai Health and Education Dialogue
A recent study from the University of Montreal shows that caffeine consumed in the hours before bed can alter the brain’s sleep recovery, especially in younger adults. The research found more wake-like brain activity during sleep when caffeine is used in the evening, potentially hindering both mental and physical restoration. For Thailand’s coffee- and tea-loving society, these findings raise timely questions about late-day caffeine and its impact on well-being.
In Thailand, iced coffee and bubble tea after dinner are common choices for students and professionals burning the midnight oil. The study, published in Nature Communications Biology in 2025, indicates that even moderate evening caffeine can noticeably change sleep rhythms, keeping the brain more alert and less restorative. The effect is strongest among people in their 20s due to age-related differences in brain chemistry.