While Dr. LaBerge studied lucid dreams as a means of personal transformation, other researchers have delved into the fundamental question of why people dream. Some argue that dreaming is a psychological necessity, serving as a "safety valve" to prevent the brain from descending into madness. Others propose that it's a physical need, aiding in the body's nightly repair processes.
Dr. Ian Oswald of Edinburgh University in Scotland posits that dreams may result from chemicals released during sleep, particularly human growth hormone (HGH), which repairs bones and muscles. He suggests that dreaming draws these vital hormones into the brain, facilitating the repair of neurons and synapses.
On the contrary, scientists Francis Crick and Graeme Mitchison propose that dreaming is the brain's mechanism for preserving sanity. They argue that excessive waking memories can overwhelm the brain's capacity for learning and that dreams help clear unnecessary clutter from neural networks, allowing the brain to function optimally.
However, some researchers challenge this theory, contending that dreams serve a more creative purpose. Dreaming has inspired artists, poets, and thinkers throughout history, leading to innovative ideas and unique problem-solving.
Finally, there are those who believe that dreams, specifically during REM (rapid eye movement) sleep, originate from our ancient survival instincts. This light stage of sleep allowed our ancestors to awaken swiftly in response to threats from wild animals or enemies.
In conclusion, the purpose of dreaming remains a topic of debate among researchers. Whether it serves to maintain mental health, promote creativity, or harks back to our evolutionary roots, dreams continue to intrigue and inspire.
Source: Adapted from various research studies.
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