Discography is a medical procedure that involves injecting a dye into
the jellylike center of a spinal disc to help diagnose back problems.
discography, a doctor looks at the amount of pressure needed to
inject the dye into the disc, whether it causes pain that is the same as your regular pain, how much dye is used, and how the dye
appears on X-ray once it is inside the disc.
Neck strain is often just called whiplash. Although it's usually associated with car accidents, any impact or blow that causes your head to jerk forward or backward can cause neck strain. The sudden force stretches and tears the muscles and tendons in your neck.
Neck strain afflicts many amateur and professional athletes. People who play contact sports like football are especially prone to neck strain.
Neck strains are often confused with neck sprains. They're a bit different. Neck strains are...