And building a strong midsection will help you get more out of every exercise you do. That's why an abs challenge like this one can be super impactful. I've designed this 30-day abs challenge to ...

Once again, 30-day fitness challenges are all the rage on social media. Whether it's a family workout challenge, a flat-abs-in-30-days challenge, or a popular 10-minutes-of-yoga-a-day-for-30-days ...

Planks are generally regarded as one of the best core (and total-body) exercises you can do, so I was excited and nervous to embark on a 30-day plank challenge ... my abs. As an avid workout ...