Yale's John Dovidio finds that people tolerate racism more than they say they will.

Ralph DiLeone discusses how our brains can make losing weight very difficult.

John A Bargh discusses research into origins of interpersonal warmth from a Yale study in which Yale researchers find touching a warm beverage leads to warm feelings towards others.

We spend fewer hours sleeping than our ancestors. Drs. Tamas Horvath and Xiao-Bing Gao, professors in the Department of Obstetrics, Gynecology & Reproductive Sciences explore health problems linked to lack of sleep, such as obesity.

Dr. Roy Baumeister discusses self-control, the factors that deplete it, and the ways we can increase it.

Teenagers are hard wired to experiment and seek out excitement. Dr. Linda Mayes discusses the state of the science on adolescent brain development and ways that adults can encourage good decision making.

Gerard Sanacora, M.D., associate professor of psychiatry and director of the Yale Depression Program, studies how the neurotransmitter systems in the brain contribute to depression and other mood disorders.

Rajita Sinha, professor of psychiatry and director of the Yale School of Medicine consortium on stress and addiction, explains how stress puts people at risk for addiction.

John Krystal, M.D., the Robert L. McNeil Jr. Professor of Clinical Pharmacology, explains current research on alcohol dependence. Dr. Krystal leads a major effort at Yale to help turn research findings about alcoholism into treatment for patients.

Leslie Jacobsen, M.D., associate professor of psychiatry, explains how exposure to nicotine in the womb, or in the teen years, is associated with neurological changes—none of them for the better.

Laurie Santos, associate professor of psychology, talks about her research testing fundamental economic principles in laboratory capuchin monkeys.

Andy Morgan, M.D., associate clinical professor of psychiatry, talks about his research with the military examining why some soldiers thrive under extremely adverse circumstances.