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Attention lapses due to sleep deprivation due to flushing fluid from brain (news.mit.edu)

619 points by gmays · 267 days ago · 291 comments on HN

Article summary

A new study from MIT reveals that sleep deprivation can lead to momentary lapses in attention due to the brain's attempt to flush out waste products through cerebrospinal fluid (CSF) flow, a process that typically occurs during sleep. The study found that during these lapses, CSF flows out of the brain, leading to impaired attention. The researchers suggest that the brain is trying to compensate for the loss of cleansing that normally occurs during sleep, but this comes at the cost of attention loss. This phenomenon is linked to other physiological changes, including decreases in breathing and heart rate, and constriction of the pupils.

Main themes

  • Sleep deprivation
  • Brain function
  • Attention and cognition
  • Cerebrospinal fluid flow
  • Physiological responses

What commenters say

  • Some people find that physical exhaustion can help with sleep, but this is not a reliable or sustainable solution for everyone.
  • Others argue that societal expectations and rigid schedules can exacerbate sleep problems, particularly for individuals with neurological differences such as autism.
  • There is controversy over the effectiveness of napping as a solution to sleep deprivation, with some people finding it helpful and others experiencing increased mental fog.
  • Some commenters suggest that short naps, typically under 30 minutes, can be beneficial in improving alertness and cognitive function.
  • The relationship between sleep, physical activity, and mental health is complex, and different approaches may work for different individuals.
  • Some people believe that the benefits of sleep are closely tied to the body's natural rhythms and that conforming to these rhythms can improve overall well-being.