Zachary Durisko, PhD – Freelance writer, editor, and scientist. Research Fellow, Evolutionary Ecology of Health Research Laboratories, McMaster University, Ontario.Dr. Durisko is a researcher in Evolutionary Psychiatry and Behavioral Ecology with several peer-reviewed academic articles. His research focuses on how human history has shaped the way we think. His work is revolutionizing how we understand mental illness, especially depression. His PhD is in Psychology, Neuroscience, and Animal Behavior.