Scientists have discovered that the way parents talk to their infants has a huge effect on their intellectual development and later success. Experts discuss why and how parents should hold "conversations" with their babies.
Professional athletes are among the most superstitious of all people. While we may be tempted to think these rituals have no effect on performance, psychologists say that if an athlete believes it helps, then it actually does. Experts explain how superstitions work in sports and in life.
A look at the top medical headlines for the week of February 3, 2019.