Deaths caused by an amebic parasite prompt scientists to take a fresh look at a once-rare disease.
Geron may have abandoned its effort to treat paralyzed patients with stem cells—but two rivals are swooping in. By Sharon Begley.
What was happening in Rick Perry’s gray matter Wednesday, when he choked and forgot his talking points? Sharon Begley explains.
Films like Paranormal Activity 3 still make massive box-office hauls, and science knows why. Sharon Begley reveals why scary flicks give us a powerful feeling of catharsis and reinforce old-fashioned beliefs about morality.
Research suggests that taking vitamins and supplements can increase your risk of cancer.
A new study suggests that the brains of "unrealistic optimists" shut out information they don't want to hear.
GOP debaters Perry and Bachmann were both wrong about the HPV vaccine, but for different reasons.
Parents’ depression and stress can leave a lasting mark on their children’s DNA, a new study shows.
New research shows that some children with depressed mothers have enlarged amygdalas.