When We All Fall Asleep, Where Do We Go? | Firdavs Khudoyberdiyev | TEDxTermez PS Youth

Firdavs Khudoyberdiyev opens his TEDx talk with a series of fundamental questions about sleep — why we sleep, why we dream, why we have nightmares — framing the entire discussion around the central mystery of where we 'go' when we fall asleep. He begins with an interactive exercise, asking the audience to close their eyes and simulate sleep, then raises the unsettling idea that one might be unable to wake up, leading into the topic of sleep paralysis.

He describes sleep paralysis vividly: a state where the sleeper wakes — or believes they do — but finds their body completely immobile, unable to scream or move, sometimes accompanied by terrifying hallucinations of shadowy figures. He grounds this in science by explaining REM (Rapid Eye Movement) sleep and the phenomenon of 'REM atonia,' in which the brain intentionally paralyzes the body to prevent physical acting-out of dreams. Sleep paralysis occurs when this atonia persists after the person regains consciousness. Khudoyberdiyev shares his own firsthand experience with sleep paralysis, noting that the tongue can still move during the episode, though no other body part can.

He then broadens the discussion to general sleep facts, noting that during sleep the body is numb to pain and that the external environment — sounds, temperature — can influence dream content. He warns that being cold while sleeping can increase nightmares, offering a lighthearted recommendation to always use a blanket.

On the mechanics of dreaming, he explains that the logical parts of the brain shut down during sleep, leaving emotion-driven, illogical dream narratives. Dreams connected to strong emotions are more likely to be remembered upon waking. He also connects one's waking environment and preoccupations — stress, anxiety, a looming test — to recurring dream themes, though acknowledges no one fully understands why this happens.

Khudoyberdiyev discusses shared dream themes reported globally, such as being unprepared for school, being chased, or seeing deceased loved ones — suggesting a universal human dream language. He addresses the common belief of 'not dreaming,' clarifying that everyone dreams every night but most people simply forget their dreams.

He introduces the evolutionary 'threat simulation theory,' proposing that dreaming may have helped early humans practice dangerous scenarios, strengthening muscle memory and survival instincts. He also touches on the 'idea of self' in dreams, explaining that one's identity appears vague and inconsistent in dreams — sometimes as a child, sometimes an old person — suggesting the brain runs simulations of different personalities to determine which best aids survival.

He closes by acknowledging that despite all these theories, the exact reasons for dreaming remain unknown. The brain is extraordinarily powerful, capable of constructing entire worlds during sleep and erasing them before waking. All humanity has, he concludes, are theories and speculations — leaving the central question unanswered: when we all fall asleep, where do we go?