High-intensity interval training (HIIT) is often blamed for elevated cortisol, stubborn fat, and hormonal disruption—especially for women over 40. But does the science actually support that claim?

In this episode of the Functional Longevity Podcast, Chris Borda breaks down what cortisol really does, how HIIT affects stress hormones, and whether intensity truly interferes with fat loss. You’ll learn when HIIT supports health, metabolism, and body composition—and when poor recovery, under-fueling, and excessive volume are the real problems.

No fear-based fitness myths. Just clarity, context, and science-backed guidance so you can train smarter and get results without burning yourself out.

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