Crunches are a familiar movement that you can easily do from the comfort of your own home or in a gym setting. This quick, 15-minute (or less!) series can be completed with minimal to no equipment.

Here's how to do it ...

How many crunches can you do — and how does that stack up with others your age? That was the question posed by "FOX & Friends" on Monday, when fitness expert Joseph David challenged hosts Brian ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If you've completed a core workout—or 100 of them—over the years, you likely know what crunches are ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? For most of my life I’ve worked out fairly consistently, running outside, ...

Remember, it’s natural to feel wobbly in this move — you’re asking your body to balance and move at the same time. Start by ...