#Circadianrhythm

For those plagued by restless nights and chronic fatigue, the promise of a “wonder pill” that can signal sleep to even the most stubborn minds is an alluring one. Melatonin, the natural hormone known for its role in regulating sleep, is increasingly touted as an answer to modern sleep deprivation. Around the world, especially in countries like the United States, synthetic melatonin is as easy to obtain as a bottle of vitamins, found online and in supermarkets. However, for many Thais, this popular sleep supplement remains beyond reach, entangled in a web of regulation and scientific debate that complicates its role as a solution for the nation’s weary.

A new wave of research from Harvard Medical School, Brigham and Women’s Hospital, and Monash University reveals that going to bed earlier can significantly increase the time and frequency of daily physical activity—suggesting the ancient proverb, “early to bed and early to rise,” has more merit than ever for health-conscious individuals.

The findings, published in June in the Proceedings of the National Academy of Sciences, draw on detailed sleep and activity data from nearly 20,000 Americans over the course of a year. Researchers analyzed 6 million “person-nights” of daily logs collected from widely used wearable fitness trackers, making this study one of the largest and most robust of its kind to date. According to the data, people who went to bed earlier—compared to their own usual pattern—were more likely to engage in longer and more frequent bouts of moderate-to-vigorous physical activity the next day. Importantly, this effect was most pronounced for individuals who had previously been logging short nights of rest. For example, people who typically slept five hours per night ended up getting a substantial increase—around 41.5 extra minutes—of moderate-to-vigorous activity the following day, compared to those regularly sleeping nine hours.

A major new study tracking 20,000 adults has sparked fresh debate over bedtime habits, revealing that going to bed earlier may have profound health benefits. The findings, highlighted in a recent report drawing international attention, suggest that shifting to an earlier sleep routine is associated with improved mood, better physical wellbeing, and a lower risk of chronic illness. This expansive research is sending ripples through Thailand’s health community, where late-night working and screen-time culture are on the rise.

Should you hit the gym after work or save that late-night jog for another day? New research, along with expert insights, is bringing welcome clarity to the perennial question of whether exercising before bedtime is a boon or a bane for a good night’s sleep. As work and family obligations push many Thais to use evenings for fitness, understanding how timing and intensity of exercise impact sleep is increasingly relevant across the nation.

New research is shedding light on a surprisingly simple strategy for increasing daily exercise: go to bed earlier. Scientists at Monash University in Australia have uncovered compelling evidence that people who consistently sleep earlier are more physically active the next day, compared to night owls and even those with average sleep schedules. The findings, released this week in the respected Proceedings of the National Academy of Sciences, could reshape public health advice not only in Australia but around the world—including Thailand, where late nights and sedentary lifestyles are common modern challenges (Gizmodo; Monash News).

A landmark study published in Medicine & Science in Sports and Exercise suggests that the timing and consistency of daily physical activity can significantly influence heart and lung health as people age. The research, which focused on older adults, provides compelling evidence that working out earlier in the day – and sticking to a regular exercise schedule – may provide substantial benefits for cardiorespiratory fitness and walking efficiency, two critical markers of healthy aging (Medical News Today).

A new study reveals that older adults who exercise earlier in the day and keep a consistent workout schedule enjoy better heart and lung health as they age, offering fresh insights for Thais keen on enhancing their long-term wellbeing. Conducted by an international team of researchers and published in the journal Medicine & Science in Sports and Exercise, the research presents compelling evidence that syncing exercise routines with our body’s natural circadian rhythms can lead to healthier aging—a finding with particular relevance for Thailand, a country facing rapid demographic changes and a growing elderly population.

A new wave of international research is reshaping what we know about the best—and worst—times to exercise for a better night’s sleep, with insights directly relevant to Thai health enthusiasts, students, and working professionals navigating busy urban lives. While the long-held belief warned against late-night workouts, new expert consensus suggests that timing, exercise type, and individual “chronotypes” all affect how our bodies wind down for rest and recover throughout the night.

A newly spotlighted morning habit is gaining attention for its potential to surpass the benefits of classic routines like exercise and meditation, according to recent reporting by Slate. While the world has long hailed physical activity and mindfulness as the staples of a healthy start to the day, fresh research and expert opinion suggest that another, more accessible morning ritual may have even greater positive impacts for mental clarity, emotional wellbeing, and productivity—a trend now catching on among health-conscious Thais.

A wave of new research warns that exercising too late in the day—especially if it’s high-intensity—could be robbing you of restorative sleep. As more Thais embrace fitness culture and nighttime gyms gain popularity in Bangkok and beyond, a landmark study of nearly 15,000 people has highlighted how the timing and intensity of your evening workout could be the culprit behind tossing, turning, and groggy mornings (Fortune, Nature Communications). For many, it’s a challenge to find gym time amid work, family, and Bangkok’s notorious traffic jams, pushing workouts close to bedtime. But these new findings have direct and important implications for health-conscious Thais.