Why else does back pain last longer than it should? Well, it’s easy to get confused because you’ve been told different things, by different people. There’s lots of people out there who are happy to dispense advice - but not all of it is credible.
Maybe you think your back pain was caused by doing something - like lifting or sleeping awkwardly - but really it was caused by years and years of poor posture that caused the muscles in your lower back to become weak and the lifting or the awkward sleeping position was just the EFFECT of that.
It goes deeper than that though, because it’s not just years of poor posture and weak muscles… “Exercise to strengthen the weak muscles” isn’t likely to be enough, and on its own may make things worse (even if it does reduce the symptoms of pain.)
It’s also all the bumps, falls, “tweaks,” injuries, and surgeries over your lifetime that have led to a buildup of “restrictions” in the tissues of your muscles, tendons, ligaments, joints, and even nerves and internal organs. These issues go unrecognized by most including doctors and scans but can wreak havoc on even the best laid out exercise routines if you don’t deal with them. At the minimum, your back might hurt less, but you’ll be setting yourself up for other problems down the road.
If you don’t know what you’re doing - back pain can be very confusing and because of this, many people just end up accepting it as ‘part of life’ - as if it’s normal, and ‘just the way it is’.