Pain comes in many forms, from a single, flash-in-the-pan pricking sensation to a dull, longer-lasting ache. Pain signals are how the body's central nervous system alerts the brain that it's under distress. Think of how you feel when you burn yourself or fall down: that...

Over time, the human body deteriorates. Muscles get weaker, bones become brittle, skin becomes thinner, and other indignities of age surface. One of the more common, serious problems with age or overuse is degenerative changes of spinal column. Often, this manifests as neck, mid, or...