By A Mystery Man Writer
Forget the HIIT lovers you see at the gym who are all kinds of #fitspo. Here’s why you should cut back on your HIIT workouts ASAP.
FAQ — 30/60/90
Is high-intensity interval training (HIIT) the most efficient way
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Daily Hiit Training
Too Much HIIT? Know the Risks of Excessive High-Intensity Exercise - CNET
HIIT Training vs. Weight Training
How effective is interval training? - Quora