and inflammation. However, strains are less common in the upper back than in other areas of the back and body. Posture is how ...

Rheumatoid arthritis (RA) is an autoimmune disorder that causes the immune system to attack its own tissues, especially the lining of joints, leading to joint damage and pain. When RA attacks the ...

This leads to inflammation that causes your back pain. You most often get it in ... The main job of your SI joints is to shift the weight of your upper body to your hips and legs when you stand ...