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Chalene Johnson on ABC Good Morning America Featuring the Home Work Out Turbo Fire

By Chalene Johnson — 2011

04:38 min

04:01

What too Much Exercise Does to Your Body and Brain

If working out is good for you, then working out more can only be better for you, right? Not quite. Too many trips to the gym or cardio sessions could actually undo all of those gains you’ve been working towards.

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EXPLORE TOPIC

Exercise