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, we’re answering dreamy questions with psychiatrist Dr. David Khan of Harvard Medical School.

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But Why is a show led by you, kids!

You ask the questions and we find the answers. It’s a big interesting world out there. On But Why, we tackle topics large and small, about nature, words, even the end of the world.