Any of the various disorders associated with the human brain, including stroke, trauma, and tumors.

It has recently been reported that neurology, the study of the brain, is the fastest growing specialty in the life sciences. With this growth has come a wealth of new information about the origins of and treatments for some of the more prevalent brain disorders. There are many varieties of brain disorders that affect humans, including Alzheimer's disease, Parkinson's disease, epilepsy, and other disorders that are more generally thought of as being "behavioral" rather than biological. These types...