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Dreams are endlessly fascinating. Psychiatrist David Kahn describes dreams as the way your brain thinks while you're asleep.

Why do people dream? Why do people have nightmares? How do dreams happen? Can people who are blind can see in their dreams?In this episode of But Why,…

Getting enough sleep is really important for the development of your brain, muscles, and emotional health.

Why Do We Need To Sleep?

Why do people need to sleep? How do we actually go to sleep? How does sleeping get rid of toxins in the brain? And how come when it's nighttime I don't…

United States Olympic Winter Games bobsledder Elana Meyers Taylor poses for a portrait at the 2017 Team USA Media Summit Monday, Sept. 25, 2017.

What Are Olympic Medals Made Of? Why Does Every Country Have A Flag?

What are Olympic medals made of? Why does every country have a flag? The 2018 Winter Olympics are underway in PyeongChang, South Korea. We reached out to…

How Do Fish See? How Do Fish Sleep? How Do Fish Breathe?

But Why visits the New England Aquarium in Boston to get answers to those and other questions kids have sent us about fish.This episode features a…

Circle Round: 'The Lion's Whisker'

Instead of an episode of But Why, we're going to check out an episode of one of our other favorite podcasts.Circle Round is a storytelling show from WBUR,…

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