Low back pain is the most common and debilitating of all pain complaints. Heavy lifting can cause it, but so can sitting at a desk all day, especially if you have bad posture and poor back support. Think hunching over a laptop at your dining table. Most times, an acute injury causing lower back pain will get better on its own in a matter of weeks. But it also can become a more lasting problem, especially as you age. Now some new science suggests one reason for this could be that we've been approaching the inflammation that comes with back pain all wrong.