THE IMPACT OF SLEEP ON COGNITIVE BRAIN FUNCTIONS

##article.authors##

  • Karimova Khusniya Sherzodbek qizi ##default.groups.name.author##
  • Aysacheva Maftunabonu Oybekovna ##default.groups.name.author##

##semicolon##

Sleep is divided into two main phases: REM sleep (Rapid Eye Movement) - characterized by brain activity similar to wakefulness. This is the phase in which dreams occur, emotional processing takes place, and memory consolidation happens. NREM sleep (Non-Rapid Eye Movement) - includes stages from light to deep sleep. During this phase, the body recovers, toxins are cleared from the brain, and neural connections are strengthened. A full sleep cycle lasts about 90 minutes and is repeated 4–6 times per night. Each sleep phase performs a unique function in maintaining cognitive balance.

##article.abstract##

Sleep is not a passive state but an active physiological process that plays a decisive 
role in maintaining cognitive health. This article examines sleep phases, 
neurophysiological mechanisms, and the influence of sleep on attention, memory, 
learning, and decision-making. Special attention is given to the consequences of 
chronic sleep deprivation and sleep disorders. Neuroscientific data are presented, 
emphasizing the need for quality sleep to ensure effective mental performance. 
Keywords: sleep, cognitive functions, memory, attention, brain, sleep stages, sleep 
deprivation, neuroplasticity.

##submission.citations##

1.

Walker M. Why We Sleep. Unlocking the Power of Sleep and Dreams. —

Penguin Books, 2017.

2.

Rasch B., Born J. About sleep’s role in memory. Physiol Rev, 2013.

https://doi.org/10.1152/physrev.00032.2012

3.

Killgore W. Effects of sleep deprivation on cognition. Progress in Brain

Research, 2010.

4.

Xie L. et al. Sleep drives metabolite clearance from the adult brain. Science,

2013. https://doi.org/10.1126/science.12412245.

Beattie L. et al. Sleep and academic performance in university students.

Journal of American College Health, 2015.

6.

Международный студенческий научный вестник https://s.eduherald.ru/

##submissions.published##

2025-06-19