For years, HIIT (High-Intensity Interval Training) has been marketed as the holy grail of fat loss—short workouts, maximum burn, fast results. But for many women over 40, HIIT isn’t delivering the body composition changes they were promised. In fact, it can work against fat loss when hormones, stress, and recovery are no longer what they were in your 20s. The Cortisol Problem As we age, our bodies become more sensitive to stress. HIIT is a powerful stressor—it spikes cortisol, the […]
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