While there's no universal cutoff that applies to everyone, understanding the risks and your body's responses can help you ...

If you ask any runner which they prefer: running on a tre admill or running outside, we can pretty much guarantee they’re going to have strong feelings about it. Some running purists can’t stand the ...

Getting some miles in on your feet has a ton of benefits. Previous Prevention reporting found that running can lower blood sugar, boost cardiovascular health, build muscle, support healthy bones, and ...

You don’t have to run outside to hit your weight loss goals.

Ask a group of runners whether they’d rather run on a treadmill or outside, and you’ll probably get some very strong opinions. Some can’t stand the boredom of indoor miles, while others love the ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Is the treadmill ...