Too Much HIIT? Know the Risks of Excessive High-Intensity Exercise

Too much of a good thing is a bad thing.

Is Less More When Exercising? 8 Risks of Overtraining - Dr. Axe

4 Signs You're Overexercising: A Certified Trainer Weighs In

Excessive exercise training causes mitochondrial functional impairment and decreases glucose tolerance in healthy volunteers - ScienceDirect

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High Intensity Workouts with Minimal Rest: RiSks of Injury

Myths You Should Stop Believing About HIIT Workouts

5 Times HIIT Could Be Dangerous for You

Overdoing HIIT Workouts Can Lead to Health Risks, Study Suggests

Too Much High-Intensity Exercise May Be Bad for Your Health - The New York Times

Scientists Find High-Intensity Exercise Is One Key To a Longer Life - Maxim

Why Killing Yourself in the Gym Could Be Doing More Harm Than Good - The Perfect Workout

How Much Cardio Is Too Much? - The Fitnessista

Is Low or High-Intensity Exercise Best for You?

HIIT Training: Don't Make These Mistakes! - Stephanie Hnatiuk

Too much exercise is bad for your gut – and the other dangers of over training