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A member asked:
Why the brain sometimes get tired?
A doctor has provided 1 answer
Neurotransmitters: This has to do with the use and decreased stores of specific neurotransmitters. The brain is an amazing metabolically active organ system and it cycles through energy and chemicals extremely fast. Rest and sleep are ways of resetting these specific metabolic pathways and neurotransmitters.
Answered 9/3/2013
4.9k views
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