Why We Dream

Every night, people enter a world filled with images, emotions, and experiences that exist only in the mind. Some dreams feel realistic, while others seem impossible. Certain dreams are remembered for years, while many disappear moments after waking up.

Despite decades of scientific research, dreaming remains one of the greatest mysteries of the human brain. Researchers have learned a great deal about sleep and brain activity, but many questions about dreams still remain unanswered.

Why do humans dream? Why are some dreams so strange? Why do we forget most of them? And could dreams actually serve an important purpose?

This guide explores the science, theories, and mysteries behind one of the most fascinating experiences of human life.

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