Brown fat cells are equipped with a large supply of mitochondria -- tiny organelles that use oxygen to burn sugar from the diet to generate heat, rather than store the energy as fat.

• 棕色脂肪细胞中有大量的线粒体--一种极小的细胞器，他们可以消耗氧气，燃烧膳食中的糖类来进行产热而不是把能量储存成为脂肪。