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"Part of what happens with HIIT is, you disturb homeostasis, you exercise at a really high level, and the body needs to cope with that," she explained.
"We need to understand even more about how the human body adapts to different exercise regimes and how this can be important for mitigating what we see as sort of aging-related changes that occur in the functionality of muscle and the ability of the muscle to metabolize fuel, sugar and fat," she said.