The TED-Ed video “Why Do We Dream?” by Amy Adkins explores various theories about the purpose of dreaming, acknowledging that while the exact reasons remain uncertain, several compelling hypotheses exist. (Summary of Why do we dream? – Amy Adkins)
One theory, proposed by Sigmund Freud, suggests that dreams are symbolic representations of our subconscious desires. Another theory posits that dreaming aids in memory consolidation; for instance, a 2010 study found that individuals who dreamed about a task performed better on it later. (Summary of Why do we dream? – Amy Adkins)
The reverse learning theory, introduced in 1983, proposes that during REM sleep, the brain eliminates unnecessary neural connections, preventing cognitive overload. Additionally, the primitive instinct rehearsal theory suggests that dreams involving threats allow us to practice our fight-or-flight responses. (Summary of Why do we dream? – Amy Adkins)
Dreams may also facilitate psychological healing; during REM sleep, stress-related neurotransmitters are less active, potentially helping individuals process traumatic experiences. Furthermore, dreams can enhance problem-solving abilities by allowing the mind to explore creative solutions unconstrained by reality, as exemplified by chemist August Kekulé’s dream-inspired discovery of the benzene molecule’s structure. (Why do we dream? – Amy Adkins | Video Summary and Q&A | Glasp, Summary of Why do we dream? – Amy Adkins)
While the definitive purpose of dreaming is still unknown, these theories highlight the multifaceted roles dreams may play in our cognitive and emotional lives.
