Scientists have studied human behavior change for decades, and there are hundreds of theoretical models designed to explain ...

For people who don't enjoy the gym—or want to avoid expensive membership fees—there are plenty of other ways to build ...

A physical therapist explains why this simple at-home move targets overlooked muscles that support powerful, more efficient running.

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TRX training is a surefire way of pushing your workout to the next level. Or, if you're quite happy with your current level, it's also a great way to just do something different. The best part is: ...

You spend about a third of your life asleep — but is your sleep position working for you or against you? The reality is that not all sleep positions are created equal. The way you sleep can impact ...