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 ...

Maybe the weather is absolutely brutal outside and you can't make it to the gym, or maybe you just have a quick 10 minutes to break a sweat in your living room. Either way, the perfect solution is an ...

Massy Arias, a NASM- and ACE-certified personal trainer who has worked with the likes of Jordin Sparks and Kelly Rowland, said that she's a huge fan of circuit training. One of the benefits she ...

Captain Thomas Tanzosh of the FDNY stopped by "GMA" to demo how they work out. Whether you want to look like the ripped firefighters you may have seen in a calendar or you're just trying to get in ...