This story is sponsored by Stretch Zone. You've heard it since gym class in elementary school: stretching before any kind of physical activity will help prevent injury and improve circulation. But is it true? Or is it one of those made-up axioms, like the one about birds exploding if you feed them uncooked rice? Good news: your mom didn't lie to you on this one! Stretching (properly) provides a variety of benefits, like improving your posture and increasing your range of motion. Here are a few reasons why you should stretch and why assisted stretching from the Stretch Zone can help you feel your best.