These four standing exercises for deep core muscles will work more than just your abs, and focuses on boosting posture, ...

When most people think of a strong core or achieving abs, the first exercise that comes to mind is often sit-ups. While sit-ups have long been a go-to for strengthening the core, they're not always ...

Think you can stomach the FBI’s sit-up test? The FBI accepts applications from people between 23 and 37 — though veterans may qualify for an age waiver. Besides a background check, applicants must ...

Find out how many sit-ups after 55 signal a strong, healthy core and use this 60-second test to track your strength over time.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Bored of planks and crunches? Why not try mixing things up with a killer ab ...

If you can’t keep up, sit this one out. The Central Intelligence Agency is seeking candidates for an “executive protective agent” role who are patriotic, trustworthy and, most importantly, fit enough ...