每天一份菠菜，大脑年轻11岁
<p><span word="While">While</span> <span word="Popeye">Popeye</span> <span word="ate">ate</span> <span word="spinach">spinach</span> <span word="everyday">everyday</span> <span word="to">to</span> <span word="maintain">maintain</span> <span word="strong">strong</span> <span word="muscles">muscles</span>, <span word="he">he</span> <span word="was">was</span> <span word="also">also</span> <span word="bettering">bettering</span> <span word="his">his</span> <span word="memory">memory</span>, <span word="maybe">maybe</span> <span word="without">without</span> <span word="even">even</span> <span word="knowing">knowing</span> <span word="it">it</span>.</p><p>大力水手波派每天吃菠菜保持肌肉力量，同时也增强了他的记忆力，他自己可能还不知道呢。</p><p><span word="Consuming">Consuming</span> <span word="just">just</span> <span word="a">a</span> <span word="daily">daily</span> <span word="serving">serving</span> <span word="of">of</span> <span word="spinach">spinach</span> -- <span word="or">or</span> <span word="any">any</span> <span word="type">type</span> <span word="of">of</span> <span word="leafy">leafy</span> <span word="green">green</span>, <span word="for">for</span> <span word="that">that</span> <span word="matter">matter</span> -- <span word="may">may</span> <span word="help">help</span> <span word="slow">slow</span> <span word="the">the</span> <span word="process">process</span> <span word="of">of</span> <span word="age">age</span>-<span word="associated">associated</span> <span word="cognitive">cognitive</span> <span word="decline">decline</span>, <span word="according">according</span> <span word="to">to</span> <span word="a">a</span> <span word="new">new</span> <span word="study">study</span>. <span word="The">The</span> <span word="reason">reason</span>? <span word="Vitamin">Vitamin</span> <span word="K">K</span>.</p><p>最新的研究显示，每天吃一份菠菜（或者说叶子多的绿色蔬菜）有助于延缓年龄增长造成的认知能力下降。为什么？因为有维生素<span word="K">K</span>。</p><p><span word="A">A</span> <span word="group">group</span> <span word="of">of</span> <span word="researchers">researchers</span> <span word="at">at</span> <span word="Rush">Rush</span> <span word="University">University</span> <span word="in">in</span> <span word="Chicago">Chicago</span> <span word="who">who</span> <span word="analyzed">analyzed</span> <span word="the">the</span> <span word="diets">diets</span> <span word="and">and</span> <span word="mental">mental</span> <span word="functions">functions</span> <span word="of">of</span> 954 <span word="elderly">elderly</span> <span word="people">people</span> <span word="over">over</span> <span word="a">a</span> <span word="five">five</span> <span word="year">year</span> <span word="period">period</span> <span word="found">found</span> <span word="that">that</span> <span word="those">those</span> <span word="who">who</span> <span word="incorporated">incorporated</span> <span word="more">more</span> <span word="green">green</span> <span word="in">in</span> <span word="their">their</span> <span word="diets">diets</span> <span word="were">were</span> <span word="more">more</span> <span word="likely">likely</span> <span word="to">to</span> <span word="be">be</span> <span word="mentally">mentally</span> <span word="sharp">sharp</span>.</p><p>芝加哥拉什大学的一个研究小组分析了954名老年人5年里的饮食情况和大脑功能数据，发现多吃绿色蔬菜的老年人思维普遍更灵敏。</p><p><span word="The">The</span> <span word="researchers">researchers</span> <span word="tracked">tracked</span> <span word="the">the</span> <span word="diets">diets</span> <span word="of">of</span> <span word="participants">participants</span>, <span word="whose">whose</span> <span word="age">age</span> <span word="averaged">averaged</span> 81, <span word="for">for</span> <span word="an">an</span> <span word="average">average</span> <span word="of">of</span> <span word="five">five</span> <span word="years">years</span>. <span word="They">They</span> <span word="found">found</span> <span word="that">that</span> <span word="people">people</span> <span word="who">who</span> <span word="ate">ate</span> <span word="one">one</span> <span word="or">or</span> <span word="two">two</span> <span word="daily">daily</span> <span word="portions">portions</span> <span word="of">of</span> <span word="green">green</span> <span word="leafy">leafy</span> <span word="vegetables">vegetables</span> <span word="had">had</span> <span word="the">the</span> <span word="same">same</span> <span word="cognitive">cognitive</span> <span word="abilities">abilities</span> <span word="as">as</span> <span word="someone">someone</span> 11 <span word="years">years</span> <span word="younger">younger</span> <span word="who">who</span> <span word="never">never</span> <span word="consumed">consumed</span> <span word="leafy">leafy</span> <span word="greens">greens</span>.</p><p>参与研究的老年人平均81岁，研究人员跟踪记录了他们的饮食情况，每个人的记录平均都有5年。他们发现每天吃一到两份多叶绿色蔬菜的人与比他们年轻11岁但从来不吃蔬菜的人有着相同的认知能力。</p>
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