How extreme heat impacts mental health

As major heat waves hit the US and Europe, a growing body of research suggests periods of extreme heat are linked to worsening mental health. A new Australian study found young people were significantly more likely to be hospitalized for mental health conditions during periods of extreme heat. It also projects heat-related mental health admissions could increase by six percent by the end of the century as extreme temperatures become more common. The World's Carolyn Beeler learned more from Amruta Nori-Sarma, assistant professor of Environmental Health and Population Sciences at the Harvard T.H. Chan School of Public Health.