体育运动有助于提升脑力，你还要瘫着吗?
<p><span word="The">The</span> <span word="research">research</span> <span word="found">found</span> <span word="that">that</span> <span word="people">people</span> <span word="who">who</span> <span word="keep">keep</span> <span word="fit">fit</span> <span word="are">are</span> <span word="more">more</span> <span word="likely">likely</span> <span word="to">to</span> <span word="have">have</span> <span word="larger">larger</span> <span word="brains">brains</span>, <span word="better">better</span> <span word="memories">memories</span> <span word="and">and</span> <span word="clearer">clearer</span> <span word="thinking">thinking</span>.</p><p><span word="They">They</span> <span word="also">also</span> <span word="found">found</span> <span word="that">that</span> <span word="unfit">unfit</span> <span word="people">people</span> <span word="tended">tended</span> <span word="to">to</span> <span word="have">have</span> <span word="smaller">smaller</span> <span word="brains">brains</span> <span word="and">and</span> <span word="reduced">reduced</span> <span word="cognitive">cognitive</span>1 <span word="skills">skills</span>.</p><p><span word="The">The</span> <span word="findings">findings</span> <span word="add">add</span> <span word="to">to</span> <span word="a">a</span> <span word="growing">growing</span> <span word="body">body</span> <span word="of">of</span> <span word="evidence">evidence</span> <span word="which">which</span> <span word="links">links</span> <span word="exercise">exercise</span> <span word="with">with</span> <span word="helping">helping</span>2 <span word="protect">protect</span> <span word="the">the</span> <span word="brain">brain</span> <span word="against">against</span> <span word="ageing">ageing</span> <span word="and">and</span> <span word="also">also</span> <span word="aiding">aiding</span> <span word="it">it</span> <span word="replace">replace</span> <span word="dying">dying</span> <span word="cells">cells</span>.</p><p><span word="This">This</span> <span word="might">might</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="debilitating">debilitating</span>3 <span word="illnesses">illnesses</span> <span word="and">and</span> <span word="diseases">diseases</span> <span word="such">such</span> <span word="as">as</span> <span word="Alzheimer">Alzheimer</span>'<span word="s">s</span>.</p><p><span word="Researchers">Researchers</span> <span word="are">are</span> <span word="not">not</span> <span word="yet">yet</span> <span word="sure">sure</span> <span word="why">why</span> <span word="exercise">exercise</span> <span word="helps">helps</span> <span word="to">to</span> <span word="protect">protect</span> <span word="brain">brain</span> <span word="cells">cells</span> <span word="but">but</span> <span word="some">some</span> <span word="research">research</span> <span word="in">in</span> <span word="mice">mice</span> <span word="has">has</span> <span word="produced">produced</span> <span word="results">results</span>.</p><p><span word="Mice">Mice</span>, <span word="examined">examined</span> <span word="at">at</span> <span word="the">the</span> <span word="National">National</span> <span word="Institute">Institute</span> <span word="on">on</span> <span word="Aging">Aging</span>, <span word="in">in</span> <span word="Baltimore">Baltimore</span>, <span word="found">found</span> <span word="that">that</span> <span word="cells">cells</span> <span word="in">in</span> <span word="the">the</span> <span word="hippocampus">hippocampus</span>, <span word="an">an</span> <span word="area">area</span> <span word="of">of</span> <span word="the">the</span> <span word="brain">brain</span> <span word="used">used</span> <span word="for">for</span> <span word="memory">memory</span>, <span word="were">were</span> <span word="actively">actively</span>4 <span word="reproducing">reproducing</span> <span word="while">while</span> <span word="their">their</span> <span word="fatter">fatter</span> <span word="peers">peers</span> <span word="were">were</span> <span word="in">in</span> <span word="decline">decline</span>.</p><p><span word="Linda">Linda</span> <span word="Clare">Clare</span>, <span word="professor">professor</span> <span word="of">of</span> <span word="clinical">clinical</span> <span word="psychology">psychology</span>5 <span word="of">of</span> <span word="ageing">ageing</span> <span word="and">and</span> <span word="dementia">dementia</span> <span word="at">at</span> <span word="Exeter">Exeter</span> <span word="University">University</span> <span word="and">and</span> <span word="a">a</span> <span word="member">member</span> <span word="of">of</span> <span word="the">the</span> <span word="Global">Global</span> <span word="Council">Council</span> <span word="on">on</span> <span word="Brain">Brain</span> <span word="Health">Health</span> <span word="told">told</span> <span word="The">The</span> <span word="Sunday">Sunday</span> <span word="Times">Times</span>: '<span word="Moderate">Moderate</span>-<span word="intensityaerobic">intensityaerobic</span>6 <span word="activity">activity</span> <span word="such">such</span> <span word="as">as</span> <span word="brisk">brisk</span> <span word="walking">walking</span>, <span word="cycling">cycling</span> <span word="or">or</span> <span word="running">running</span> <span word="can">can</span> <span word="produce">produce</span> <span word="changes">changes</span> <span word="in">in</span> <span word="brain">brain</span> <span word="structure">structure</span> <span word="and">and</span> <span word="function">function</span>.'</p>
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