english: Our own research, now it's 2,000 years later, suggests that what's happening is that when the brain is awake and is at its most busy, it puts off clearing away the waste from the spaces between its cells until later, and then, when it goes to sleep and doesn't have to be as busy, it shifts into a kind of cleaning mode to clear away the waste from the spaces between its cells, the waste that's accumulated throughout the day.
non_english: Naše istraživanje, 2.000 godina kasnije, pokazuje da mozak odlaže čišćenje otpada iz međućelijskog prostora dok je budan i zauzet, ali kad zaspi i ne mora više da radi, počinje da iz međućelijskog prostora čisti otpad koji se nagomilao u toku dana.