Add Yahoo as a preferred source to see more of our stories on Google. We spend hours hunched over phones and computer monitors day in and day out. It’s no surprise we have an epidemic of back pain.

If you have yet to experience back pain, the odds are sadly stacked against you. According to World Health Organization data, most people will experience low back pain at some point in their lives.

A strong core is about more than just six-pack bragging rights — it’s the foundation of your strength and overall well-being. But you don't need to torture yourself with endless crunches. Instead, ...