Im an Exercise PhysiologistHeres Why You Shouldnt Worry About Cortisol Spikes When You Do HIIT Workouts.

Elliptical vs Treadmill: Which Cardio Machine Is Right For You?

Does Rowing Count as Strength Training?

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Heres What Experts Had to Say

Imaginerunning on the treadmill.

Now, imagine running on a treadmill for 12 hours, 9 minutes, and 15 seconds.

Bitters feat is impressive on multiple levels.

woman sweating in the gym

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Its a beautiful machine, but 12 hours of anything is a lot.

So, how exactly did Bitter do it?

He also ate some potato chips around around the mile 87.

Woman walking on a treadmill at the gym.

Does Dancing Count as Cardio?

Heres What Experts Say

Glute Bridge vs Hip Thrust: Which Is The Better Booty Booster?

Im a Master TrainerHeres Why You Shouldnt Skip Your Post-Run Stretches.

Full body female athlete in sportswear using rowing machine during fitness workout in gym.

Another of Bitters treadmill running tips is something anyone can do, whether youre running 100 miles or five.

In the end, Bitter did something many people could never fathom.

Now Im going to go run a couple miles… and not complain even a little bit about it.

Happy woman dancing and listening to music near a green empty wall outdoor in the city.

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Got it, you’ve been added to our email list.

Healthy female training in the gym, performing a hip thrust.

A young black woman doing post-run stretches in the park on the road amidst green grass and trees.