Dr. Michael Smith, director of the Behavioral Sleep Medicine Program at John Hopkins University, examines the impact of sleep deprivation on physical and mental health.
Dr. Michael Smith, director of the Behavioral Sleep Medicine Program at John Hopkins University, gives tips for overcoming insomnia and following the body's natural signals for sleep.
Vint Cerf, one of the fathers of the Internet, explores its dark side.
Lee Rainie traces the origins of social media and how it is changing people's lives.
Envisioning a future where machine communication influences every aspect of people's lives.
Fathali Moghaddam, professor of psychology at Georgetown University, examines the behaviors that unite and divide friends and couples.
Fathali Moghaddam, professor of psychology at Georgetown University, sees the rise of women leaders as the key to building peaceful societies.
The psychology of people with dictatorial personalities.
Evolutionary psychologist Nancy Etcoff examines whether money can buy happiness.
Evolutionary psychologist Nancy Etcoff explores whether science will be able to make people happier.
Pulitzer prize-winning historian David McCullough describes how a love of childhood books, a fascination with the paintings of N.C. Wyeth, and a lively Scots-Irish family inspired his storytelling gifts.
David McCullough points out how there were no guarantees that the American Revolution would succeed.
Lisa Randall, theoretical physicist and leading particle and cosmology expert, explains the role of creativity in science.
Frances Jensen, neurologist and author of "The Teenage Brain," investigates whether adolescents are better at multitasking than adults.
Frances Jensen, neurologist and author of "The Teenage Brain," uncovers the truth about bizarre sleep patterns and fatigue in adolescents.
Frances Jensen, neurologist and author of "The Teenage Brain," offers a revolutionary explanation for risky behavior in adolescents.
Dr. Rudy Tanzi, neurologist and co-discoverer of the Alzheimer's gene, shares how traumatic brain injuries could lead to Alzheimer's disease or dementia.
Evolutionary psychologist Nancy Etcoff explores whether there will ever be a true "cure" for depression.
Dr. Rudy Tanzi, neurologist and co-discoverer of the Alzheimer's gene, relates the extent of the population affected by Alzheimer's disease.
Frances Jensen, neurologist and author of "The Teenage Brain," explains why everyone should be prepared for the possible onset of epilepsy at some point in life.
Lowell Observatory astronomer Nick Moskovitz surveys the number of stars and planets believed to exist in the universe.
Severe weather expert Jeff Halverson reveals the root cause of high death tolls and devastation from hurricanes Katrina and Sandy.