Add Yahoo as a preferred source to see more of our stories on Google. QUICK, STAND UP and reach your arm overhead. Does your back arch as you do this? Does your chest puff out like a cartoon character ...

Here’s a quick mobility test for you: Can you reach one arm behind and up your back and the other arm over your shoulder and down your back so your hands meet? This simple test—often called the back ...

Picture the perfect running gait: You lean forward from the ankles, arms swinging back and forth to support your momentum, as your legs move in a full circle and your feet land gracefully, one at a ...

QUICK, STAND UP and reach your arm overhead. Does your back arch as you do this? Does your chest puff out like a cartoon character? If you answered both questions with a resounding “yes,” then there’s ...