Too much of a good thing is a bad thing.
Is Your HIIT Workout Actually Causing You More Stress?
High-intensity exercise and your heart - Harvard Health
10 Warning Signs You're Exercising TOO Much - 12 Minute Athlete
Why Killing Yourself in the Gym Could Be Doing More Harm Than Good - The Perfect Workout
Can HIIT Make You Sick? (Yes, Here's Why & How To Avoid) – Fitbod
Too Much HIIT? Know the Risks of Excessive High-Intensity Exercise - CNET
Myths You Should Stop Believing About HIIT Workouts
HIIT Workout Benefits and Sample Routines - Dr. Axe
HIIT Training: Don't Make These Mistakes! - Stephanie Hnatiuk
High Intensity Workouts with Minimal Rest: RiSks of Injury
Understanding High-Intensity, Low-Impact Training (HILIT)
Too Much HIIT? Know the Risks of Excessive High-Intensity Exercise - CNET
5 Common HIIT Injuries and How to Avoid Them - New York Bone & Joint Specialists