Your lower esophageal sphincter (LES) is a muscular ring that connects your esophagus with your stomach. It relaxes to let food pass through but otherwise stays closed to prevent stomach acid from ...

Exercise-induced hypertension, also called hypertensive response to exercise (HRE), is a condition in which your blood pressure spikes dramatically during physical activity. It’s unclear how rare this ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...

Convincing runners to add strength training to their schedules is no easy feat. But hear us out: Lifting weights can make you a better runner in a few different ways. You’ll run more efficiently, ...

This story is adapted from Life Kit's Guide to Building Strength, a five-day email series. Sign up for the special newsletter here. There are innumerable ways to shape a workout routine for building ...

Jump rope is a full-body workout that improves cardiorespiratory fitness, strengthens muscles and bones, and builds coordination and balance. It’s also easy to adjust for your pace and skill level.