When humans switched to meat-eating, they triggered a genetic change that enabled better processing of fats, said Stanford, who has worked extensively with gerontologist Caleb Finch of USC.

• 当人类开始吃肉以后，其身体也随之发生了一系列的遗传变化。其中重要的一点即是人们能够更好地处理食物中的脂肪和胆固醇。