Crunches are another enduring bodyweight exercise. Here's what the exercise is, which muscles it works and why crunches are so good for overall health. Start the day smarter. Get all the news you need ...

Reverse crunches target the lower abs and tone the lower belly pooch by working the rectus abdominis, transverse abdominis ...

What are the benefits of doing crunches ... Lifting your head and shoulders to one side or the other or engaging in bicycle crunches by involving your legs will, too. These and other variations ...