science museum

Why do we dream?

No one really knows why we dream. The psychoanalyst Sigmund Freud thought dreams were the key to our subconscious. Some researchers today suggest that their purpose may be to keep us asleep - the brain's natural entertainer. Others think that dreams are a way of deleting unnecessary information and retaining important information to be stored in our memory.

Sigmund Freud thought dreams were the key to our subconscious.
Sigmund Freud thought dreams were the key to our subconscious.
Science & Society Picture Library

Science Museum Home Page Who am I? Science Museum Home Page