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Running shoes are carefully designed to cushion your feet and provide arch support and padding and all that stuff.
憑借科學嚴謹的設計跑鞋能夠緩沖腳部壓力而且為足弓，鞋襯及襯墊提供支撐。
Run without shoes and you'll tear up your foot on rocks and pebbles.
如果在巖石及鵝卵石上光腳跑步，你的腳會被磨破。
But studies have shown that running shoes can do more harm than good.
但是最近研究表明跑鞋帶來的危害大于益處。
When you run wearing shoes, you tend to land on your heels.
當你穿鞋子跑步時，你傾向于腳后跟著地。
Somehow, that's what most running shoes make us do.
某種程度上，大多數跑鞋都會使我們這樣著地。
But run barefoot, and you'll naturally land on the balls of your feet.
但是光腳跑步會使你自然而然用前腳掌著地。
Striking the ground this way is less forceful than landing on your heel.
這樣著地遠比用腳后跟著地帶來的沖力小。
So it's likely that running barefoot may reduce injuries to the knee and lower back.
因此光腳跑步可能會減少膝蓋和背部下部受到的傷害。
