Big Think
Big Think
@bigthink·8.8M subscribers·10.1K videos

What happens to your brain when you’re dreaming

Posted

April 9, 2026

Views

59,041

Likes

1,891

Comments

98

Engagement

3.37%

Search the Record

Indexed

Every word spoken in this episode is indexed. Type any phrase to jump straight to the moment it was said.

Type any word or phrase that may have been spoken. Click a result to seek the player to that exact moment.

Try a name, a topic, or a quoted line

YouTube Description

as posted by the channel

We created this video in partnership with Unlikely Collaborators.

Have you ever woken up after a dream and thought to yourself, “That made absolutely no sense”? According to modern neuroscience, there’s a reason why dreams feel so abstract and bizarre. Two sleep experts discuss.

Subscribe to Big Think on YouTube ►

Every 90 minutes, our bodies go paralyzed while our brains become more active than during waking life. Sleep psychologist Dr. Shelby Harris and neuroscientist Dr. Patrick McNamara, Associate Professor of Neurology at Boston University, dig into one of the most fascinating mysteries in human biology: why we dream and what our brains are actually doing during REM sleep. They explore competing theories of what dreaming is for, McNamara makes a compelling case that REM sleep may have been a key driver of early human creativity, and both reflect on why reclaiming our reverence for the dream state could change the way we think and create.

Read more from this interview ►

Explore the Perception Box series hub ►

----------------------------------------------------------------------------------

Go Deeper with Big Think:

►Become a Big Think Member

Get exclusive access to full interviews, early access to new releases, Big Think merch and more.

►Get Big Think+ for Business

Guide, inspire and accelerate leaders at all levels of your company with the biggest minds in business.

Guests & Subjects Covered

Unlikely Collaborators HaveDr Shelby HarrisBoston UniversityPerception BoxGo DeeperBig Think BecomeBig Think Member GetGet Big Think

Sentinel Indexing in Progress

Metadata and chapters are available. Claim extraction for this episode is pending.

All video content is delivered via YouTube embedded players in accordance with the YouTube Terms of Service. Sentinel provides research tools that promote discovery and accountability across political media.