Sit-ups are a great way to work your abs, but they're not the only way to strengthen your core. And, anyway, endless repetitions of sit-ups and crunches can get a bit boring after a while. Fortunately ...

A single session of high-intensity exercise can disturb the body's main stress hormone, leading to less activity after the workout, a lower body temperature, and weight gain, a new study of mice finds ...

Sit-ups are great for strengthening the core but doing sit-up after sit-up gets a little boring and it's important to mix up the moves you use to train your core. With this in mind, we've found a five ...