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The Surprising Reason Your Muscles Get Tired When You Exercise

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The Surprising Reason Your Muscles Get Tired When You Exercise

Why Do Marathon Runners Poop Their Pants?

Runner's trots wait for no one.

Why Do Marathon Runners Poop Their Pants?

When Mousercise Brought Aerobics to the Disney Channel

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When Mousercise Brought Aerobics to the Disney Channel

6 of the Most Popular Fitness Trackers on Amazon

Fitbit/Amazon

6 of the Most Popular Fitness Trackers on Amazon

10 of the Most Popular Running Shoes On Amazon

New Balance/ASICS/Amazon

This Two-in-One Stationary Bike Desk Lets You Exercise at Work

Amazon

What's Inside a Can of Red Bull?

How to Cancel Your Gym Membership Without Breaking a Sweat

Canceling your gym membership can be a hassle.

The AURA Fitness Band Is Like a Personal Trainer Around Your Wrist—and It's on Sale Right Now

AURA

Relieve Sore Muscles With the JAWKU Chrome Massage Gun While It's 25 Percent Off

Jawku

This 10-Speed Massage Gun Comes With Eight Different Heads for Customized Relief

BioGrit

Workouts Are a Breeze With This Mini Collar Fan

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Never Lose an Earbud Again With These $14 Bluetooth Headphones

Mpow/Amazon

12 Facts About Richard Simmons

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This Richard Simmons Action Figure Will Motivate Your Other Toys

Richard Simmons, now in motivational toy form.

Victorian Women Worked Out, Too—They Just Did It Wearing Corsets

Opening a door was nearly as taxing as an actual 19th-century workout.