Basic Ab Workout for Dummies isn't available to stream, rent, or buy in your region right now. Check back soon or try a different region using the flag selector below. The film holds a 100% audience ...

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 ...

You'll need better moves to build a functional core. Here’s how you can upgrade your workouts.

What is the most effective abdominal exercise? While I have never heard one specific exercise for abs described as the "most effective," there are a few that make up the cornerstones of a good ...

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 ...