Strength

Better known today as somewhat of an action hero after his leading role in Tom Clancy's Jack Ryan, John Krasinski's impressive acting skills aren't the only thing that has people talking — it's his workouts! This is John Krasinski's workout routine that totally transformed his body.

There's a lot of information out there about how good planks are for you — but how long should you hold a plank?

The idea that lifting weights makes women (especially) bulk up like Arnold Schwarzenegger in his heyday is as tough to budge as a 350-pound barbell. But adding weights to your workout provides health benefits beyond building muscle, says Kaley Hatfield, a certified professional fitness trainer.

Squats are a staple exercise in nearly every workout, and with good reason. But for all their benefit, they're also an easy move to perform wrong, which can lead to injury. Here's how to do them correctly.

Although planks aren't quite as easy as they sound, they do have plenty of benefits. Here's a look at what really happens when you start doing planks every day.

Although people use these terms interchangeably, chin-ups and pull-ups target different muscle groups: One engages your upper back and arm muscles while the other activates your back, chest, and shoulder muscles.

The humble pushup is an exercise that engages muscles throughout your entire body. You can perform them anywhere and without any equipment, but should you?

A simple squat is a foundational movement that is key to getting fitter and stronger, but sometimes, squatting can lead to an aching back long after you've racked your weights and left the gym.

Have you ever been to the gym and seen somebody lifting an impressive amount of weights, and then you happened to notice they're barefoot or just wearing socks? As it turns out, these bare-or-stocking-foot lifters aren't just doing it to show off their stinky feet.