Ever since humans started walking on two legs, spinal disorders exist.
The most common problems all have to do with the skeletal structure, its supporting muscles and abnormalities in the joints.
These can be caused by strain, injury, bad posture and not enough exercise, but sometimes pain can appear without any obvious reason.
Hereditary factors and prolonged physical strain can be a cause just as lifting a heavy weight or making a simple movement in an awkward direction.
Spinal disorders can cause problems in other parts of the body, including headaches and pain in limbs.