Why do we feel refreshed after waking up when our brain is active the whole night?

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AFAIK the brain is working hard during our sleep phases but still, sleep is necessary to refresh our body and our brain as well. Doesn’t this contradict itself? How can the brain regenerate itself while being active?

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4 Answers

Anonymous 0 Comments

It’s like your brain taking a shit. Or peeing and taking a shit. It has a lot of information it has collected that it needs to file for storage, or just get rid of. It has to take some time off and rest and empty it’s temporary storage for tomorrow’s information.

Anonymous 0 Comments

Sleep isn’t as simple as “rest” for you brain. Your body does “rest” all the cells are metabolize all the time. What goes on in your brain is more like the night times at a bit office. The major executives and engineers and analysis are are gone, but the building is still Active. The night janitors coming in to clean up an office, the interns staying late to finish filing, the IT guys updating the servers, security guard doing this rounds, etc. It’s not resting, it’s doing the stuff that your brain wasn’t doing when you were awake.

Anonymous 0 Comments

Feel refreshed after waking up? What is this. I feel tired and groggy for about the first 2 hours

Anonymous 0 Comments

In the past 2 or 3 years, we have learned that spinal fluid flushes through the brain while we are asleep and washes away toxins and stuff. You wake up with a freshly rinsed noggin.