Are We Getting Dumber? Maybe, New Research Suggests

Image courtesy Shutterstock, evolution
Image courtesy Shutterstock, evolution

A provocative new study published in Trends in Genetics suggests that human intelligence has been slowly deteriorating since societies moved away from hunter-gatherer lifestyles. Study author Gerald Crabtree, of Stanford University, discusses the controversial work.

Segment Guests

Gerald Crabtree

Gerald Crabtree is a professor of pathology and developmental biology at Stanford University School of Medicine and an investigator at Howard Hughes Medical Institute. He is based in Stanford, California.

Meet the Producer

About Denise Chow

Denise Chow is a sci-tech editor at Live Science and a former associate producer for Science Friday.