What gives us the heavy feeling of “tiredness” in our brain/head when we’re tired?
In: Biology
Brain does stuff throughout the day. Doing stuff makes waste. Waste builds up. Light goes down. Eyes send message to brain day’s over. Alert goes out to cleaning crew. Chemicals and fluids start moving in to pressure wash the brain to make it nice and clean for the next day. If cleaning crew is trying to do its job while we’re still working, it’s like everyone still being in the office while the janitors are trying to work.
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