Push-ups are everywhere — high school gym classes, the military, gym, studios and dojos or even used as a form of punishment. With good reason: Push-ups are tough. While people at gyms spend lots of time on benches and other fancy equipment, push-ups may be an even more effective way to get you stronger, faster.

The push-up is one of the most simple, yet effective upper body exercises. For maximum results, it is imperative to perform this exercise with proper form.

Jessica Biel's pre-Emmy pistol squats look insanely challenging, so what exactly are they and why would anyone do them?

When it comes to running, should men and women train differently? Instagrammer Grace Kim James can answer this question from experience.

The best fitness-friendly underwear wicks moisture, stays put and is so comfy you forget they’re there. Here are some top tips for choosing the perfect pair.

Walking is hands-down the easiest form of exercise. So easy, in fact, that you likely do it without even thinking about it. You can walk almost anywhere, and walking provides a broad range of benefits. Unfortunately, researchers and health experts agree that Americans need to be doing a lot more of it.

When you get that new pair of running shoes, do not immediately start to run in them. Walk around the house for a few days in them and wear the shoes when running errands around town. Wear them to work if you're allowed. This will also provide a good snapshot of how your new running shoes fit.

Rihanna's personal trainer Dede Lagree reveals the secrets behind the singer's toned body in an exclusive interview with LIVESTRONG.COM.

Nothing beats the feeling of knowing you’re stronger today than you were yesterday. If you train with weights on a regular basis, chances are you know how exciting it is to nail a heavy lift you could once barely budge. To score your next PR (personal record), give post-activation potentiation (PAP) a try.

It’s pretty easy to learn from your own mistakes. But why even make the mistakes in the first place if you can learn from where others have gone wrong? While running can be as easy as putting one foot in front of the other, it can quickly become a lot more complicated. Do you need special shoes? A coach?

When it comes to training, whether you’re a novice or a seasoned workout veteran, there’s a time and place for low-intensity training sessions. They're a great way to introduce yourself to training, start back up after a hiatus, decrease stress on a battle-worn body or boost recovery between higher-intensity sessions.

Traveling is all about relaxing — and while you're doing so, it doesn't hurt to feel your best and most confident. Here's how.