白天容易打瞌睡?可能是老年痴呆的先兆!
<p><span word="Are">Are</span> <span word="you">you</span> <span word="excessively">excessively</span> <span word="sleepy">sleepy</span> <span word="during">during</span> <span word="the">the</span> <span word="day">day</span>? <span word="If">If</span> <span word="so">so</span>, <span word="you">you</span> <span word="may">may</span> <span word="have">have</span> <span word="a">a</span> <span word="higher">higher</span> <span word="risk">risk</span> <span word="of">of</span> <span word="Alzheimer">Alzheimer</span>'<span word="s">s</span> <span word="disease">disease</span>, <span word="according">according</span> <span word="to">to</span> <span word="a">a</span> <span word="recent">recent</span> <span word="study">study</span> <span word="published">published</span> <span word="online">online</span> <span word="Sept">Sept</span>. 5, 2018, <span word="by">by</span> <span word="the">the</span> <span word="journal">journal</span> <span word="Sleep">Sleep</span>.</p><p>你白天特别困吗？《<span word="Sleep">Sleep</span>》杂志2018年9月5日新发表的研究表明，你如果特别困，那么患老年痴呆的风险就更高。</p><p><span word="Scientists">Scientists</span> <span word="asked">asked</span> 124 <span word="healthy">healthy</span> <span word="older">older</span> <span word="adults">adults</span>, <span word="average">average</span> <span word="age">age</span> 60, <span word="about">about</span> <span word="how">how</span> <span word="often">often</span> <span word="they">they</span> <span word="felt">felt</span> <span word="drowsy">drowsy</span> <span word="or">or</span> <span word="fell">fell</span> <span word="asleep">asleep</span> <span word="during">during</span> <span word="the">the</span> <span word="day">day</span> <span word="when">when</span> <span word="they">they</span> <span word="would">would</span> <span word="rather">rather</span> <span word="be">be</span> <span word="awake">awake</span>, <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="their">their</span> <span word="napping">napping</span> <span word="habits">habits</span>. <span word="The">The</span> <span word="group">group</span> <span word="then">then</span> <span word="had">had</span> <span word="regular">regular</span> <span word="PET">PET</span> <span word="scans">scans</span> <span word="over">over</span> <span word="the">the</span> <span word="next">next</span> 15 <span word="years">years</span> <span word="to">to</span> <span word="look">look</span> <span word="for">for</span> <span word="beta">beta</span>-<span word="amyloid">amyloid</span> <span word="in">in</span> <span word="the">the</span> <span word="brain">brain</span>, <span word="high">high</span> <span word="amounts">amounts</span> <span word="of">of</span> <span word="which">which</span> <span word="are">are</span> <span word="a">a</span> <span word="hallmark">hallmark</span> <span word="for">for</span> <span word="Alzheimer">Alzheimer</span>'<span word="s">s</span>.</p><p>科学家找了124位平均年龄60岁的健康老人，询问他们白天想清醒的时候是否会感觉困倦或睡着，还询问了他们的午睡习惯。然后在接下来的15年里研究团队定期对他们进行<span word="PET">PET</span>扫描，在大脑中寻找β-淀粉样蛋白，含量过高就是患上了老年痴呆。</p>
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