The Polar Bear Swim in Vancouver in 1978. Lisa Pantages, second from the left, will complete her 64th annual plunge this New Year’s.

Science

‘Excitement With a Little Dash of Fear’: Polar Plunges Ring in the New Year With a Splash. But What Actually Happens to Your Body?

Three experts share the science behind taking a dip in cold water—and offer safety tips that any potential plungers should bear in mind

Marta Hill

Stimulants prescribed for ADHD target the parts of the brain related to wakefulness and reward, shown in yellow and orange, according to a new study.

Smart News

How Do These ADHD Medications Work in the Brain? The Mechanisms Are Different Than Once Thought, a Study Suggests