Meet Dr. Q

Miles O'Brien, producer of "Mind of a Rampage Killer," describes what it's like to meet the parents of troubled teens.

Why mass murders and other tragedies that kill scores of people make us most fearful.

Michael Brenner, who teaches a class on the science of cooking, talks about egg whites, ethylene, protein, and more.

Could a brain-stimulating technique that uses an electrical current enhance math abilities in children?

Fred Lepore, a neurologist who has studied Einstein’s brain, answers questions about human intelligence.

Can science help us understand why some people commit horrific acts of mass murder?

Scientists search for the biological roots of genius in Einstein's brain.

Can science predict violent behavior and help prevent tragedies like Newtown, Connecticut?

Recently released brain images could provide fresh clues as to what made Einstein so smart.

Find out how to make your Thanksgiving dinner even more scrumptious.

Use some of the same imaging techniques neuroscientists use—from MRIs to PET scans—to see inside the human brain.

See exactly how your heart pumps blood throughout your body and learn astounding facts about the human heart.

Toxic compounds in animal venom could yield new drugs for heart disease, cancer, and chronic pain.

Hear Steven Pinker, Rodney Brooks, and other experts offer their insights on what it means to be smart.

Humans haven't found a way to counteract or block the effects of aging, but we've tried. See how in this time line.

In the year 2000, the U.N. set out to make maternal health care a universal right. Where does that goal stand today?

Cell biologist Mark Roth says that suspended animation isn't just science fiction.

Bioethicist Art Caplan says that memory-altering drugs raise major ethical questions.

Can music help diminish the crippling symptoms of Alzheimer's disease?

A new study at Harvard is exploring how emotions affect our decisions, whether we like it or not.