Dean A. Haycock, PhD, earned a fellowship from the National Institute of Mental Health to study at The Rockefeller University. The results of his research have been published in Brain Research, Journal of Neurochemistry, Journal of Biological Chemistry, Journal of Medicinal Chemistry, and Journal of Pharmacology and Experimental Therapeutics. His books include The Everything Health Guide to Adult Bipolar Disorder, 2nd Edition; The Everything Health Guide to Schizophrenia; and Murderous Minds: Exploring the Psychopathic Brain. He lives in Salem, NY.