"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Situps and crunches aren't the only (or even the best!) way to strengthen and define your abs. For proof, ...

Crunches and sit-ups have always been the go-to bodyweight exercises for people looking to work their abs, but they’re not your only option, and there are certainly more enjoyable ways to train your ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." This 20-minute abs workout is part of the Women's Health 30-Day Workout Challenge. For this part of the ...

Get ready to work your legs and core in this 20-minute workout from ISSA-certified personal trainer and Under Armour trainer Sydney Torabi. The purpose of this workout is to build strength and muscle ...

Build a strong and stable core with this 20-minute yoga flow focused on abs, balance, and overall stability. Perfect for ...

For a core- and glute-specific workout, you'll love this eight-move workout from ISSA-certified personal trainer and Under Armour trainer Sydney Torabi. It's quick (done in 20 minutes!), but intense!

If you rarely have the time to commit to a 20- or 30-minute workout, then slipping shorter sessions into your weekly routine can be an effective way to train instead. Armed with the right workout you ...