在尼日利亚北部凯茨那州的一个村庄里，妇女们在剥玉米叶子。
Women husk corn at a village in Katsina state in northern Nigeria.
根据心理分析学者曼弗雷德·凯茨·德·弗里斯的观点，唯一能治愈厌倦感和焦虑的方法就是回报他人。
According to psychoanalyst 25 Manfred Kets DE Vries, the only cure for the boredom and anxiety is to give something back.
但是，凯茨玛德扎克的一个同事，马克·汉密尔顿博士怀疑，与一种叫脂蛋白脂肪酶(LPL)的酶有关，它能分解血管内的脂肪，将之转化为能量。
But Marc Hamilton, Ph.D., one of Katzmarkzyk's colleagues, suspects it has to do with an enzyme called lipoprotein lipase (LPL), which breaks down fat in the bloodstream and turns it into energy.
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