eli5 why does mind zone out?

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When we are doing something boring like reading a book or attending a boring lecture or watching a boring documentary, why does our mind zone out? What actually happens inside and please explain like I’m 5.

In: Biology

3 Answers

Anonymous 0 Comments

The brain is expensive energywise. One of its main conscious functions is detecting difference. When what the brain is observing doesn’t change much it tends to shut down a bit to save on gas.

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