Start on all fours. Extend your right arm in front of you and your left leg behind, actively reaching in opposite directions.

Start with these staple dumbbell exercises for your workouts to build muscle and strength on the way to a new you.

Most people train their core with good intentions but poor results. Endless crunches, rushed planks, and random workouts ...

Barre is a style of movement that can help you build strength, improve your posture and work on your mobility. It combines ...

Here's everything you need to know to get started packing on muscle with dumbbells, kettlebells, and barbells.

We lead busy lives, and between school, work or spending time with family, it can be tricky to make time for working out, especially when first establishing a regular exercise routine. But keep this ...

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 ...

The best CrossFit exercises for beginners include air squats, deadlifts, and burpees. You don't need a specific gym to do them, either, as many can be done wherever there's equipment. CrossFit offers ...