Science
REM sleep paradox: Dreaming may drain the brain’s energy even as fuel supply rises
The brain uses an extraordinary amount of energy compared with most other organs. Even so, it can continue processing information when energy is limited by adjusting how available resources are used.
Summary
The brain uses an extraordinary amount of energy compared with most other organs. Even so, it can continue processing information when energy is limited by adjusting how available resources are used. Scientists are still trying to understand how the brain manages this energy budget as it moves through different internal states. Sleep offers a useful way to study that question.
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