#SeniorFitness

A renowned cardiologist and expert in longevity, now aged 70, has revealed that adding strength training to his routine transformed his health, making him fitter than ever—even compared to decades earlier. Sharing insights with TODAY.com, the cardiologist, an authority in cardiovascular medicine and aging research, admits that a lifetime focused purely on aerobic exercises like running and cycling left a critical gap in his regimen: neglecting resistance training. This realization prompted a fundamental shift. Now, after a year of consistently engaging in at least an hour of strength training three times a week, or shorter sessions more frequently, he credits resistance work with boosting his strength and fitness well beyond what aerobic activity alone ever achieved. “If I’m going to be old, I’d rather be strong and old,” he remarked, encapsulating a philosophy with deep resonance for Thailand’s fast-aging society (today.com).

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.