What causes grogginess when you first wake up – what about your brain isn’t working?
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When we go to sleep, our brain goes through cycles. think of it like a big circle, with “check points” where you stop and switch activities. Sometimes we wake up in the middle of that “cycle”, and it’s much harder to skip ahead to “awake” because we are stuck way back in the middle of those checkpoints. During those “stops” we have different states of unconsciousness, and sometimes when we are dreaming (such as REM sleep) it’s much more difficult to “snap” back to being conscious. Our brain has to clean up the chemicals that were helping us stay in that deep sleep state (that helps refresh our brains for the next day), so that groggy period is just our brain catching up because we interrupted the usual cycle.
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