光脚的真的不怕穿鞋的吗？
<p><span word="Do">Do</span> <span word="you">you</span> <span word="have">have</span> <span word="calluses">calluses</span> <span word="on">on</span> <span word="your">your</span> <span word="feet">feet</span>? <span word="Don">Don</span>'<span word="t">t</span> <span word="fear">fear</span> <span word="them">them</span>, <span word="though">though</span>. <span word="New">New</span> <span word="research">research</span> <span word="has">has</span> <span word="revealed">revealed</span> <span word="that">that</span> <span word="foot">foot</span> <span word="calluses">calluses</span> — <span word="thickened">thickened</span> <span word="skin">skin</span> <span word="that">that</span> <span word="forms">forms</span> <span word="naturally">naturally</span> <span word="when">when</span> <span word="one">one</span> <span word="walks">walks</span> <span word="barefoot">barefoot</span> — <span word="have">have</span> <span word="evolved">evolved</span> <span word="to">to</span> <span word="protect">protect</span> <span word="the">the</span> <span word="feet">feet</span> <span word="and">and</span> <span word="provide">provide</span> <span word="for">for</span> <span word="comfortable">comfortable</span> <span word="walking">walking</span> <span word="in">in</span> <span word="perhaps">perhaps</span> <span word="ways">ways</span> <span word="that">that</span> <span word="shoes">shoes</span> <span word="can">can</span>'<span word="t">t</span> <span word="match">match</span>.</p><p>你脚上有茧吗？不要怕它们。新的研究表明，脚茧作为一种赤脚行走时自然形成的厚皮，可以让我们的行走更加舒适，还能起到保护脚的作用。某种程度上来说，穿鞋子都达不到这样的效果呢。</p><p><span word="Unlike">Unlike</span> <span word="shoes">shoes</span>, <span word="foot">foot</span> <span word="calluses">calluses</span> <span word="offer">offer</span> <span word="protection">protection</span> <span word="without">without</span> <span word="compromising">compromising</span> <span word="sensitivity">sensitivity</span> <span word="or">or</span> <span word="gait">gait</span>, <span word="according">according</span> <span word="to">to</span> <span word="a">a</span> <span word="study">study</span> <span word="published">published</span> <span word="in">in</span> <span word="June">June</span> <span word="online">online</span> <span word="in">in</span> <span word="the">the</span> <span word="journal">journal</span> <span word="Nature">Nature</span>. <span word="Shoes">Shoes</span>, <span word="in">in</span> <span word="contrast">contrast</span>, <span word="reduce">reduce</span> <span word="sensitivity">sensitivity</span> <span word="in">in</span> <span word="the">the</span> <span word="foot">foot</span> <span word="and">and</span> <span word="alter">alter</span> <span word="the">the</span> <span word="way">way</span> <span word="that">that</span> <span word="the">the</span> <span word="impact">impact</span> <span word="forces">forces</span> <span word="transfer">transfer</span> <span word="from">from</span> <span word="the">the</span> <span word="foot">foot</span> <span word="to">to</span> <span word="joints">joints</span> <span word="higher">higher</span> <span word="up">up</span> <span word="the">the</span> <span word="leg">leg</span>.</p><p>《自然》杂志6月在线发布的一项研究表明，与鞋子不同的是，脚茧提供的保护并不会影响脚部的敏感度和步态。相比之下，鞋子会降低脚部的敏感度，并会改变从脚部传递到腿部上方关节所受到的冲击力。</p>
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