If you only have 15 minutes to sweat, it's easy to skip out on a workout. I mean, how much can you really accomplish in 15 minutes, right? Umm, a lot, actually—if you spend them wisely. That's the ...

Circuit training is an excellent, well-rounded workout that combines strength training and cardio in one. Although there is very little resting involved, your session will be time-efficient and packed ...

Build muscle and strength after 55 with this fast 12-minute bodyweight circuit that targets your legs, core, and upper body.

We say this with the greatest respect, but [Joel] — your exercise routine is horrible! Kudos for getting up and doing something, but 108 trips up and down the stairs? That sounds like torture, not ...