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Study shows dreams consume more brain energy than previously thought

A study found that dreams may consume more brain energy than previously thought. During REM sleep, brain activity is so intense that neurons may expend energy faster than it can be replenished.

In brief

  • Blood flow to the brain increases during REM sleep.
  • The available energy supply in neurons decreases during dreaming.
  • Brain activity during REM sleep is very intense.
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  • Newsroom 2
100%2 items

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