Sciencespeaking topic
The feeling of fullness doesn't reach the brain from the stomach right away; it's delayed by about 20 minutes. Why do fast eaters overeat, and why is 'eat slowly' real physiology rather than mere advice?
— satiety signal delay / leptin and ghrelin
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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