I first spotted the move on his social media, and it immediately stood out. You start in a plank position with your hands on ...

Incorporating a pull-up bar adds a new dimension to your ab routine. Hanging from the bar challenges your abs from a different angle while placing a bigger demand on your hands, shoulders, and lats. A ...

These are the moves that will build the upper body strength and size you want.

Abs are often an afterthought, tacked onto the end of your workout as a few basic sit-ups. But like any muscle group, to achieve strength and definition, you’ve got to step things up to avoid the ...

For fitness purposes we can roughly divide the body into three sections: the lower body (legs), the core (abs), and upper body (everything from the chest up including arms, shoulders, and back—but not ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

They're simple, but effective, and they'll have you burning calories for hours after they're done.