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.

Experts share the exact muscles you should work and exercises you should do to reduce (and prevent) common back pain and injuries.

As someone who trains, I know how difficult it can be to get started when you're looking at all the countless exercises and variations that exist. To help you narrow it down as you work to build ...