#Jointcare

A growing body of research and expert analysis warns that High-Intensity Interval Training (HIIT)—long promoted as the ultimate quick and efficient fitness solution—may pose serious health risks for adults over 50. As Thailand’s population ages, understanding which exercises truly benefit longevity and wellbeing is critical for turning back the clock not just on the surface, but deep within our bodies.

The concern over HIIT and similar high-intensity workouts lies in how older bodies respond to extreme exercise. According to the recent article published by Journee Mondiale (journee-mondiale.com), fitness professionals and medical researchers no longer consider HIIT universally safe for the over-50 crowd. The main culprit appears to be the body’s stress response: HIIT can trigger a surge in cortisol, the so-called ‘stress hormone.’ For adults over 50—especially women undergoing menopause—this cortisol spike may amplify hormonal imbalances, contribute to sleep issues, spark chronic inflammation, and promote fat accumulation around the waist, all maladies already associated with aging. Sports medicine specialists note that the long-term elevation of cortisol could counteract the cardiovascular benefits of exercise, raising the risk of heart problems.

A growing body of research warns that high-intensity interval training (HIIT) may not be the universal best choice for adults over 50. As Thailand’s population ages, it’s essential to identify exercises that truly support longevity and well-being for longer, healthier lives.

Experts say the body’s response to extreme effort changes with age. A recent analysis suggests HIIT is not universally safe for those over 50. The primary concern is the stress response: HIIT can trigger a spike in cortisol, the body’s stress hormone. For people approaching or beyond menopause, this cortisol surge can worsen hormonal imbalances, disrupt sleep, promote chronic inflammation, and encourage fat accumulation around the waist. Over time, sustained cortisol elevation may blunt cardiovascular benefits and raise heart risk.