起来，不愿变老的人们！
<p><span word="The">The</span> <span word="best">best</span> <span word="anti">anti</span>-<span word="ageing">ageing</span> <span word="technique">technique</span> <span word="could">could</span> <span word="be">be</span> <span word="standing">standing</span> <span word="up">up</span>, <span word="scientists">scientists</span> <span word="believe">believe</span>, <span word="after">after</span> <span word="discovering">discovering</span> <span word="that">that</span> <span word="spending">spending</span> <span word="more">more</span> <span word="time">time</span> <span word="on">on</span> <span word="two">two</span> <span word="feet">feet</span> <span word="protects">protects</span> <span word="DNA">DNA</span>.</p><p><span word="A">A</span> <span word="study">study</span> <span word="found">found</span> <span word="that">that</span> <span word="too">too</span> <span word="much">much</span> <span word="sitting">sitting</span> <span word="down">down</span> <span word="shortens">shortens</span> <span word="telomeres">telomeres</span>, <span word="the">the</span> <span word="protective">protective</span> <span word="caps">caps</span> <span word="which">which</span> <span word="sit">sit</span> <span word="at">at</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="chromosomes">chromosomes</span>.</p><p><span word="Short">Short</span> <span word="telomeres">telomeres</span> <span word="have">have</span> <span word="been">been</span> <span word="linked">linked</span> <span word="to">to</span> <span word="premature">premature</span> <span word="ageing">ageing</span>, <span word="disease">disease</span> <span word="and">and</span> <span word="early">early</span> <span word="death">death</span>. <span word="So">So</span> <span word="spending">spending</span> <span word="less">less</span> <span word="time">time</span> <span word="on">on</span> <span word="the">the</span> <span word="sofa">sofa</span> <span word="could">could</span> <span word="help">help</span> <span word="people">people</span> <span word="live">live</span> <span word="longer">longer</span> <span word="by">by</span> <span word="preventing">preventing</span> <span word="their">their</span> <span word="DNA">DNA</span> <span word="from">from</span> <span word="ageing">ageing</span>.</p><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="were">were</span> <span word="frequently">frequently</span> <span word="on">on</span> <span word="their">their</span> <span word="feet">feet</span> <span word="had">had</span> <span word="longer">longer</span> <span word="telomeres">telomeres</span>, <span word="which">which</span> <span word="were">were</span> <span word="keeping">keeping</span> <span word="the">the</span> <span word="genetic">genetic</span> <span word="code">code</span> <span word="safe">safe</span> <span word="from">from</span> <span word="wear">wear</span> <span word="and">and</span> <span word="tear">tear</span>.</p><p><span word="Intriguingly">Intriguingly</span> <span word="taking">taking</span> <span word="part">part</span> <span word="in">in</span> <span word="more">more</span> <span word="exercise">exercise</span> <span word="did">did</span> <span word="not">not</span> <span word="seem">seem</span> <span word="to">to</span> <span word="have">have</span> <span word="an">an</span> <span word="impact">impact</span> <span word="on">on</span> <span word="telomere">telomere</span> <span word="length">length</span>.</p><p><span word="Prof">Prof</span> <span word="Mai">Mai</span>-<span word="Lis">Lis</span> <span word="Hellenius">Hellenius</span>, <span word="from">from</span> <span word="Karolinska">Karolinska</span> <span word="University">University</span> <span word="Hospital">Hospital</span> <span word="in">in</span> <span word="Stockholm">Stockholm</span>, <span word="said">said</span> : "<span word="In">In</span> <span word="many">many</span> <span word="countries">countries</span> <span word="formal">formal</span> <span word="exercise">exercise</span> <span word="may">may</span> <span word="be">be</span> <span word="increasing">increasing</span>, <span word="but">but</span> <span word="at">at</span> <span word="the">the</span> <span word="same">same</span> <span word="time">time</span> <span word="people">people</span> <span word="spend">spend</span> <span word="more">more</span> <span word="time">time</span> <span word="sitting">sitting</span>.</p><p>"<span word="There">There</span> <span word="is">is</span> <span word="growing">growing</span> <span word="concern">concern</span> <span word="that">that</span> <span word="not">not</span> <span word="only">only</span> <span word="low">low</span> <span word="physical">physical</span> <span word="activity">activity</span> <span word="but">but</span> <span word="probably">probably</span> <span word="also">also</span> <span word="sitting">sitting</span> <span word="and">and</span> <span word="sedentary">sedentary</span> <span word="behaviour">behaviour</span> <span word="is">is</span> <span word="an">an</span> <span word="important">important</span> <span word="and">and</span> <span word="new">new</span> <span word="health">health</span> <span word="hazard">hazard</span> <span word="of">of</span> <span word="our">our</span> <span word="time">time</span>.</p><p>"<span word="We">We</span> <span word="hypothesise">hypothesise</span> <span word="that">that</span> <span word="a">a</span> <span word="reduction">reduction</span> <span word="in">in</span> <span word="sitting">sitting</span> <span word="hours">hours</span> <span word="is">is</span> <span word="of">of</span> <span word="greater">greater</span> <span word="importance">importance</span> <span word="than">than</span> <span word="an">an</span> <span word="increase">increase</span> <span word="in">in</span> <span word="exercise">exercise</span> <span word="time">time</span> <span word="for">for</span> <span word="elderly">elderly</span> <span word="risk">risk</span> <span word="individuals">individuals</span>."</p><p><span word="Telomeres">Telomeres</span> <span word="stop">stop</span> <span word="chromosomes">chromosomes</span> <span word="from">from</span> <span word="fraying">fraying</span>, <span word="clumping">clumping</span> <span word="together">together</span> <span word="and">and</span> "<span word="scrambling">scrambling</span>" <span word="genetic">genetic</span> <span word="code">code</span>.</p><p><span word="Scientists">Scientists</span> <span word="liken">liken</span> <span word="their">their</span> <span word="function">function</span> <span word="to">to</span> <span word="the">the</span> <span word="plastic">plastic</span> <span word="tips">tips</span> <span word="on">on</span> <span word="the">the</span> <span word="ends">ends</span> <span word="of">of</span> <span word="shoelaces">shoelaces</span>, <span word="and">and</span> <span word="say">say</span> <span word="that">that</span> <span word="lifespan">lifespan</span> <span word="is">is</span> <span word="linked">linked</span> <span word="to">to</span> <span word="their">their</span> <span word="length">length</span>.</p>
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