In this May 2022 episode of Unexplainable, host Noam Hassenfeld explores theories on why people dream, drawing on research from sleep and dream experts to establish what we know about our brain's activities while we sleep.

Throughout history, dreams have been interpreted through a religious or philosophical lens, but they are rarely explained by science.

We read books, watch videos, and listen to experts to figure out what our dreams might symbolize, but researchers are searching for a more scientific explanation.

Noam Hassenfeld is a reporter, producer, science editor for Vox, and host of Vox's Unexplainable podcast.

In Why Do We Dream?, an episode from May 2022, Hassenfeld talks to reporter Brian Resnick about his discussions with sleep and dream researchers on the origins of dream studies, the purpose of dreaming, and the usefulness of dreams in evolution.