Sit-ups can be a great way to strengthen your abdominal muscles that sit around your stomach. But they can quickly get repetitive and its easy to accidentally lose your form, so when boredom strikes, ...

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 ...

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. It’s kind of strange, ...

The fitness world has embraced a new champion in core training, and traditional sit-ups have taken a backseat. The plank, despite its deceivingly simple appearance, has captured worldwide attention ...

Some polarizing topics are meant to be debated forever: which Taylor Swift album reigns supreme, are dogs or cats better pets, and were Ross and Rachel really on a break, for example. And when it ...

The sit-up has dominated workout routines for decades, but fitness professionals increasingly question whether this familiar movement deserves its place in modern training programs. The issue isn’t ...