So what if there were a way to turn white fat cells into brown fat cells?

那要是有一种可将白色脂肪细胞转化为棕色脂肪细胞的方式，结果如何？

Brown fat cells are different—they're not supposed to STORE fat: they're supposed to BURN it.

人们认为它们燃烧脂肪，而非存储脂肪。

Brown fat cells are not really filled with fat, but with other particles that can increase energy metabolism a lot.

褐色脂肪细胞其实并不是充满了脂肪，还含有许多可以大幅促进能量代谢的粒子。

They can do that because it's packed with mitochondria, which, are brown, and that's why they're called' brown fat cells.

这是因为它们存有棕色的线粒体，也就是为什么它们被称作棕色脂肪细胞的原因。

Which turns them into brown fat cells.

这将它们变成棕色脂肪细胞。

Instead of one large lipid droplet in a white fat cell, the brown fat cell is one tightly packed bag of mitochondria.

棕色脂肪细胞不是白色脂肪细胞中的一个大脂滴，而是一个紧密包裹着线粒体的袋子。