Mitochondrions are "the plant of power" with cell, supplying the energy which body depends on all the time in every biology chemical reaction or action of livers.
线粒体是细胞的“动力工厂”，它提供机体所有生命活动和生化反应不可或缺的能量。
2
It's a great time for physical exercise because we have high body temperature, the fastest reaction to an outside stimulus, and the greatest muscle strength and cardiorespiratory efficiency.