Gary L. Wenk, PhD, a professor of psychology at Ohio State University and author, discusses how food acts like a drug for your brain in the September 13 online neuroscience section of the original science content magazine Seed.

"The distinction between what is considered a food (something that your body wants or needs in order to function optimally) or a drug (something that your brain wants or needs in order to function optimally) is becoming increasingly difficult to define," explained Wenk.