Two Guys on Your Head

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March 28, 2014

What’s Happening Inside Your Head When You Sleep

By: Rebecca McInroy

We need to sleep for a host of reasons, but what exactly is happening in our brains while we’re unconscious? We’ve only scratched the surface of understanding all that happens during sleep, but we do know that while our bodies are resting, our brains are very busy.

Have you ever tried to commit some skill or knowledge to memory and you magically perform better after a night of sleep? It’s not magic. One of the most significant functions of sleep is the process of memory consolidation: experiences you’ve had during the day, things you’ve started to store in your memory, become consolidated and stabilized during sleep. Different stages of sleep function to consolidate different kinds of memory, so a full night of sleep (six to nine hours on average), helps your memory function more cohesively.

Take in what professors Bob Duke and Art Markman have to say in the players above. Then have a nap, to refresh and consolidate what you’ve learned. Sleep is a lot more than just rest; do yourself a favor and get the sleep that your brain and the rest of your body needs.

Originally aired June 9, 2013.


Episodes

May 22, 2026

Oration Part I: On Slowing Down

Graduation season brings a flood of commencement speeches, but most fall flat. In this first episode in our  Two Guys on Your Head series on oration, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy break down the psychology behind effective public speaking and explore the specific techniques that separate forgettable speeches from memorable ones.

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May 15, 2026

How We Learn Language

If we can learn a language in our infancy, why is it so difficult to learn a second language later in life? On this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy explore how we learn language.

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May 8, 2026

Déjà vu

Have you ever traveled to a new place and suddenly, randomly, you experience this overwhelming sense of familiarity with what you’re seeing, like you’ve already seen it, even though you know you haven’t because you’ve never been there before? We call this phenomenon Déjà vu. On this episode of Two Guys on Your Head Dr. Art Markman, Dr. Bob […]

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May 1, 2026

Graduation

It’s graduation season, and that comes with a lot of joy, tears, expectations, and relief. But it turns out, as Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy explore in this episode of Two Guys on Your Head, graduation is about a lot more than a diploma.

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April 24, 2026

Art Explains his Easter Egg

Art explains the intro clip in the Easter Egg episode.

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April 24, 2026

Easter Eggs

When we discover a hidden secret in a song, a movie, or a book, we can feel a sense of joy and connection. Those little gems are referred to as “easter eggs,” and we look for them because we’re curious. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy talk […]

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April 17, 2026

Schadenfreude

We’ve all felt a little spark of satisfaction when someone who wronged us stumbles, or when a rival fails. That feeling has a name: schadenfreude, a German word for the pleasure derived from witnessing the troubles or humiliation of others. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy explore why […]

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April 10, 2026

The Failure Gap & Its Discontents

In a forthcoming paper in the Journal of Personality and Social Psychology, Eskreis-Winkler and colleagues describe what they call “the failure gap” — the consistent finding that outside observers dramatically overestimate how often people succeed after failing. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy […]

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