Back pain is a common problem that affects most people at some point in their life. It usually feels like an ache, tension or stiffness in your back. The pain can be triggered by bad posture while sitting or standing, bending awkwardly, or lifting incorrectly. In the past, doctors recommended rest for back pain, but most experts now agree that being inactive for long periods is bad for the back and one should try to remain as active as possible and continue with one’s daily activities.