Decreasing body temperature is one of the strongest signals to our brain to bring on sleep onset...when the ambient temperature is too high, the body cannot cool itself and therefore can't fall asleep.

Sara Mednick, assistant professor of psychology, on how climate change and increased temperatures can affect sleep cycles

THE WASHINGTON POST

As research continues, one thing we know for certain is that protecting our DNA from UV damage, for people of every color, is synonymous with preventing skin cancers

Kerry Hanson, research chemist, on the many ways the sun can damage skin, and how to protect skin in the summer months

SMITHSONIAN