Rethinking Fitness After 50: Why Moderate, Consistent Movement Beats High-Intensity Where It Counts
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.
