How training affects cells is determined not only by whether we move at all, but also by how intensely and for how long we do ...

There is evidence even five minutes or less of high-intensity interval training - where you work hard for 30 seconds and then ...

The issue: Many runners (particularly women) report that their fitness trackers tell them they’re exercising in a higher zone ...

APPLE is giving away two sets of fitness freebies this month – just in time for the January health kick. Normally you’d have ...

A head trainer breaks down why common training shortcuts in your 30s often come back to haunt you years later.

It’s easy to let the festive season disrupt regular exercise routines, with travel, closed facilities and busy calendars ...

Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's Health+ Ultimate HIIT Challenge is a week-long program that combines high intensity interval training ...

Five very different L.A. personal trainers to get you motivated this year. Discover astrology-informed strength sessions, ...

Over the next 4 weeks, you’ll follow a specific workout plan each day: strength training, optional cardio/steps, active recovery, or rest. Each strength workout includes a warm-up and a cooldown ...

A healthy dose of cardio is an important part of your exercise routine, and for a lot of us, "zone 2" cardio is going to make up a big chunk of that. Low-intensity cardio—sometimes called LISS or ...