Sleep all comes down to the mitochondria (science.org)

Article summary

The article discusses a study that suggests sleep may be related to the functioning of mitochondria, with a possible biochemical rationale for sleep being postponed by a specific pharmacological manipulation. The study used Drosophila sleep-inducing neurons and found that cell-autonomous mild uncoupling keeps the flies awake by lowering mitochondrial Δp and electron leak. The article's findings may have implications for understanding the purpose of sleep and potentially developing wakefulness-promoting drugs. However, the full article text is not available, and the discussion is based on the comments.

Main themes

• Mitochondria and sleep
• Biochemical rationale for sleep
• Wakefulness-promoting drugs
• Neural networks and sleep
• Evolutionary origins of sleep

What commenters say

• The study's findings on mitochondria and sleep may lead to the development of wakefulness-promoting drugs, but their long-term effects are uncertain.
• Some commenters believe that sleep is necessary for the brain to reorganize its weights and prevent overfitting, while others think it may serve multiple purposes.
• The comparison between sleep and training neural networks is seen as a useful analogy by some, but others argue that it is an oversimplification and that sleep likely serves a more complex function.
• There are differing opinions on the potential benefits and risks of wakefulness-promoting drugs, with some arguing that they could have negative long-term effects and others seeing them as a potential tool for improving performance and treating conditions like depression.
• The evolutionary origins of sleep are still unclear, but some commenters suggest that it may have developed for a specific purpose and then been co-opted for other functions.
• Some argue that the brain's need for sleep is not solely related to neural networks or training, but rather to more fundamental biological processes.
• The idea that sleep is necessary for discarding bad examples or preventing overfitting is seen as a plausible explanation by some, but others think it is too simplistic.
• There is a debate about the potential consequences of developing wakefulness-promoting drugs, with some warning that they could be used to exploit or manipulate people.