Source: NPR, 2/27/21

Researchers say two-way communication is possible with people who are asleep and dreaming. Specifically, with people who are lucid dreaming — that is, dreaming while being aware you're dreaming. In separate experiments, scientists in the U.S., France, Germany and the Netherlands asked people simple questions while they slept. Sleepers would respond by moving their eyes or twitching their faces in a certain way to indicate their answers.

For more of this story, click here.