Sleeping on your stomach is tough on your spine, because the back is arched and your neck is turned to the side. Preferred sleeping positions are often set early in life and can be tough to change, not to mention that we don't often wake up in the same position in which we fell asleep. Still, it's worth trying to start the night sleeping on your back or side in a well-supported, healthy position.
Chiropractors use hands-on spinal manipulation and other alternative treatments, the theory being that proper alignment of the body's musculoskeletal structure, particularly the spine, will enable the body to heal itself without surgery or medication. Manipulation is used to restore mobility to joints restricted by tissue injury caused by a traumatic event, such as falling, or repetitive stress, such as sitting without proper back support.