HIIT After 50: Why Your Fitness Coach Isn’t Telling You About the Real Risks
High-intensity interval training dominates fitness culture, but the protocol that works for 32-year-olds carries real risks for those over 50—risks most fitness coaches aren’t trained to spot. Your body changes after 50 in ways that narrow the margin for error during intense exercise, yet most people never get proper cardiovascular assessment before pushing hard in group classes.