Less energy expenditure makes you more lethargic, less cholecystokinin means more hunger, less leptin signalling means more hunger and more ghrelin also means you're hungrier.

更少的能量消耗会让人更嗜睡，更少的胆囊收缩素、更少的瘦素信号以及更多的胃促生长素都会增加饥饿感。