There’s no denying that Jennifer Aniston’s workout routines have kept her in great shape through the decades. At 56 years old, her beauty and fitness regimens continue to pay off. Her secret? She ...

The 15-15-15 workout goes by so quickly, you more or less break a sweat and then you're finished. At least that's what it feels like. This is the workout for anyone who'd rather be doing anything else ...

I just learned that one of my favorite ways to pass the time in a hotel gym has been given a catchy name and a celebrity endorsement. It’s the 15-15-15 workout, and it will give you a good 45-minute ...