Russell Mclendon

An eruption at Mount Etna in July 2021. (Salvatore Allegra Photography/Moment/Getty Images)

Naps can be amazing. They can rejuvenate you in a variety of ways, such as boosting alertness, reaction time, memory, and problem-solving.

Illustration of human lymphocytes. (Ruslanas Baranauskas/Science Photo Library)

Jizo statues at Zōjō-ji Temple in Tokyo representing unborn children. (Tatters/Flickr/CC BY-SA 2.0)

We all get old eventually if we're lucky, but not always at the same rate.

Interior of the Pantheon, Rome. (Francesco Riccardo Iacomino/Moment/Getty Images)

Our love of sugar once helped our foraging ancestors get more bang for their buck from rare, high-energy foods.

How do you handle disappointment? Are you sometimes defiant, doubling down in the face of failure, or do you typically adapt with aplomb?

A major volcano in Nicaragua has not one but two active magma chambers, scientists reveal in a new study, shedding important light on the inner workings of a highly active volcano located near a large human population.

Your pupils quickly dilate when you enter a dark room, letting in more light to help you see. Once you're in brighter conditions, they contract accordingly.