Buddha, Jesus, Mohammed. Plato, Socrates, Hippocrates. All of them had at least one thing in common. They fasted. It turns out these influential figures were on to something, at least when it comes to health. Some scientists say that regularly abstaining from food for even short periods of time may improve health, boost brain power, and fight diseases ranging from cancer to diabetes to Alzheimer’s. It could even extend lives. The catch is that you have to periodically put down your fork. Could you permanently say goodbye to breakfast if it meant you might live longer? What about skipping all your meals two days a week? We speak to Mark Mattson, chief of the Laboratory of Neurosciences at the National Institute on Aging, and University of Maryland molecular geneticist Steve Mount, who has been a practitioner for the last 12 years.