What is Your Brain Doing While You Are Sleeping?

We assume that the brain is doing something while we’re asleep because we dream. But is dreaming all that is going on up there? Are dreams just random static coming out of our sleeping brains, or is our brain doing things behind our backs while we are asleep? When we get tired, we sleep so we can shut down to rest and rebuild. It seems logical that the brain would follow a similar pattern. After all, don’t we get tired of thinking and want to turn the process off after…
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