Separating each spinal vertebra is a disc. Its fibrous outer ring holds in a jelly-like material. Because of the way a disc attaches to the spinal bones above and below it, it can't actually "slip." However, a disc can bulge, tear, herniate, thin and collapse. But it can't slip.

It's not the pollen. Chiropractors know that if it were, everyone would be allergic to pollen, nuts and pet dander. But that's not the case. It's the person, not the pollen! If you live in Portland and your stress levels are high, then each year the grass, the trees or the weeds put your nervous system over the top. Many report that chiropractic care helps reduce the frequency and severity of their allergic response.