Does anaesthetic unconsciousness = restorative sleep?

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Discussion Overview

The discussion revolves around the relationship between anaesthetic unconsciousness and restorative sleep. Participants explore whether being under anaesthesia can be equated with sleep, particularly in terms of memory processing and restorative functions. The conversation touches on various aspects of anaesthesia, its effects on the brain, and potential long-term implications for sleep deprivation.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants question whether the lack of dreaming under anaesthesia implies that it does not provide restorative sleep.
  • Others suggest that while anaesthesia may allow for some restoration, it might not replicate the full benefits of natural sleep, particularly REM sleep.
  • A participant mentions that certain brain functions may remain active during sleep, which could be necessary for restoration, raising doubts about the completeness of recovery during anaesthesia.
  • There are anecdotal accounts of personal experiences with anaesthesia, including varying recovery times and side effects, which contribute to the discussion about its effects on cognitive functions.
  • Some participants reference studies indicating that brain inactivity during anaesthesia may have restorative effects, but the full range of sleep functions remains uncertain.
  • Concerns are raised about the potential long-term cognitive effects of repeated anaesthesia, particularly regarding REM sleep deprivation.
  • Participants share personal anecdotes about different types of anaesthesia and their experiences, including preferences for local versus general anaesthesia.

Areas of Agreement / Disagreement

Participants express a variety of views on the relationship between anaesthesia and sleep, with no consensus reached. Some agree on the potential for anaesthesia to provide partial restoration, while others emphasize the importance of REM sleep and question the completeness of recovery during anaesthesia.

Contextual Notes

Participants mention the complexity of brain functions during sleep and anaesthesia, as well as individual variability in responses to anaesthetic agents. There are references to specific studies and anecdotal evidence, but no definitive conclusions are drawn regarding the long-term effects of anaesthesia on sleep and cognitive health.

Who May Find This Useful

This discussion may be of interest to individuals considering procedures involving anaesthesia, those curious about the nature of sleep and consciousness, and researchers exploring the effects of anaesthesia on cognitive functions.

  • #31
I've had an active life. 13 emergency surgeries in the span of about 30 years for various insults to my body. That does not include 3 colonoscopies and a half dozen tooth implants. I love general anesthesia. Always wake up fine. I had noticed an article in a British Medical Journal that gave a higher risk of dementia for anesthesia patients in a dose response manner. Genetically I'm a low risk for Alzheimer's (APOE 2/3). At 71, so far so good. Went to a party hosted by a physician in the 70's who passed out some anesthesia but not enough to put me out. It was the best hallucinogen I ever tried. 30 minute trip and no side effects. Since the mid 80's I have had nocturnal epilepsy from time to time. I don't take drugs for that anymore but have found that a high dose of melatonin with theanine helps a lot. I sleep well and do not seem to be cognitively impaired yet but perhaps this rambling post is a sign.
 
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  • #32
A recent post from Nature indicated animals in general need sleep to restore mitochondrial electric balance. Without this excess ROS are generated. Certain neurons detect this and make us sleepy. https://phys.org/news/2025-07-mitochondria.html. I suppose anesthesia could do the same thing?
 

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