A strong core is about more than just six-pack bragging rights — it’s the foundation of your strength and overall well-being. But you don't need to torture yourself with endless crunches. Instead, ...

I often have clients call attention to the lower abs as a place they would like to tone. I always remind them that strengthening this area is important beyond aesthetics because strong ab muscles ...

I’m not one to big up an exercise I don’t believe in. I’ll happily tell you sit-ups are low on my priority list of the best abs exercises to program for my clients, with or without weights. So when I ...

Your core is like a WI-FI router. When it’s strong, everything in your body is connected and working seamlessly. But when ...

Our legs carry us wherever we go, and it's tempting to pay them back by putting your feet up whenever possible. There's a time and a place for that, but personal trainers share that one of the best ...

I love a tough leg day workout. I'm all about deadlifts and the many types of squats to challenge all the lower body muscles. Still, I often find myself doing the same moves on repeat and could use an ...

Chair exercises to lose belly fat after 55, 4 expert moves from a CSCS-certified trainer to firm your lower belly.

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...