Your metabolic rate is the speed at which your body transforms food into energy.
你的新陈代谢率就是你身体将食物转换成能量的速度。
《柯林斯英汉双解大词典》
3
"T" is "treat your body well", because experts say that exercise can reduce stress and also if you eat healthy food, then your brain and your body get the nourishment they need.