生物體與外界環境之間的物質和能量交換以及生物體內物質和能量的轉變過程叫做新陳代謝。新陳代謝是生物體內全部有序化學變化的總稱。 如何促進加快新陳代謝？人在減肥時，如果沒有運動，人的新陳代謝率會降低，當代謝率降低時，只需你減肥前熱量的一半，就能維持身體所需。多餘的熱量就會形成脂肪堆積起來。運動不但可以提高新陳代謝率，同時可以抑制體重反彈。
The exchange of matter and energy between a living organism and its external environment, as well as the transformation of matter and energy within the organism itself, is called metabolism.
Metabolism refers to the totality of all organized chemical reactions occurring within a living organism.
How can metabolism be accelerated?
When a person is trying to lose weight without engaging in exercise, their metabolic rate tends to decrease.
When the metabolic rate drops, the body can maintain its basic functions using only half the calories previously required.
The excess calories are then stored as fat.
Exercise not only helps increase the metabolic rate, but also prevents weight regain by maintaining a higher level of energy expenditure.