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, director of Internet science and technology research at the Pew Research Center, compares the ways chimps and humans build communities to how social networking surpassed traditional media to set the news agenda of the day.
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.
Bran Ferren, design and technology innovator, proposes melding science and art as a natural option to lead a wholesome life.
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.
Dr. Rudy Tanzi, neurologist and co-discoverer of the Alzheimer's gene, shows how to reduce the risks of contracting Alzheimer's disease.
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 expounds on the importance of manned space missions.
Severe weather expert Jeff Halverson reveals the root cause of high death tolls and devastation from hurricanes Katrina and Sandy.