Rethinking Evening Workouts: Thai Readers Should Time Exercise for Better Sleep
A major international study warns that late-evening, high-intensity workouts can disrupt restorative sleep. As fitness culture grows in Thailand and nighttime gyms multiply in Bangkok and beyond, new findings suggest finishing exercise too close to bedtime may cause difficulty winding down and groggy mornings. This matters for busy Thai professionals, students, and families juggling work, commuting, and social obligations.
Regular physical activity remains a cornerstone of health, endorsed by doctors and Thailand’s Ministry of Public Health for its role in reducing disease risk, boosting mood, and supporting sleep. Yet the latest research from Monash University challenges the blanket “any exercise is good” mantra when sleep is the goal. The study followed nearly 15,000 adults using fitness trackers over a year, analyzing millions of nights of data. The key message: completing high-intensity workouts within four hours of sleep correlates with later sleep onset, shorter duration, and poorer sleep quality. Lighter activities such as walking or stretching, if done late, showed less impact on sleep.
