Sciencespeaking topic
The glymphatic system: Nedergaard discovered that while we sleep the brain flushes out the day's toxic waste like a sewer. If sleep is not a luxury but the brain's mandatory cleaning shift, does sleeplessness pollute the brain?
— Maiken Nedergaard, the glymphatic system
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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