研究：爱咬指甲是强迫症
<p></p><p><span word="The">The</span> <span word="occasional">occasional</span> <span word="chewed">chewed</span> <span word="nail">nail</span> <span word="isn">isn</span>’<span word="t">t</span> <span word="an">an</span> <span word="indication">indication</span> <span word="of">of</span> <span word="the">the</span> <span word="disorder">disorder</span>, <span word="medical">medical</span> <span word="experts">experts</span> <span word="assure">assure</span>.</p><p><span word="Millions">Millions</span> <span word="of">of</span> <span word="people">people</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span> <span word="suffer">suffer</span> <span word="from">from</span> <span word="a">a</span> <span word="self">self</span>-<span word="mutilating">mutilating</span> <span word="and">and</span> <span word="often">often</span> <span word="painful">painful</span> <span word="addiction">addiction</span> <span word="to">to</span> <span word="biting">biting</span> <span word="their">their</span> <span word="nails">nails</span>, <span word="which">which</span> <span word="can">can</span> <span word="be">be</span> <span word="harder">harder</span> <span word="to">to</span> <span word="quit">quit</span> <span word="than">than</span> <span word="smoking">smoking</span> <span word="cigarettes">cigarettes</span>, <span word="but">but</span> <span word="is">is</span> <span word="often">often</span> <span word="overlooked">overlooked</span> <span word="as">as</span> <span word="a">a</span> <span word="relatively">relatively</span> <span word="benign">benign</span> <span word="habit">habit</span>.</p><p><span word="Medical">Medical</span> <span word="experts">experts</span> <span word="are">are</span> <span word="now">now</span> <span word="taking">taking</span> <span word="a">a</span> <span word="closer">closer</span> <span word="look">look</span> <span word="at">at</span> <span word="the">the</span> <span word="addiction">addiction</span> <span word="and">and</span> <span word="have">have</span> <span word="decided">decided</span> <span word="to">to</span> <span word="change">change</span> <span word="its">its</span> <span word="classification">classification</span> <span word="from">from</span> <span word="a">a</span> <span word="mere">mere</span> <span word="habit">habit</span> <span word="to">to</span> <span word="a">a</span> <span word="full">full</span>-<span word="fledged">fledged</span> <span word="obsessive">obsessive</span>-<span word="compulsive">compulsive</span> <span word="disorder">disorder</span>.</p><p><span word="The">The</span> <span word="American">American</span> <span word="Psychiatric">Psychiatric</span> <span word="Association">Association</span> <span word="is">is</span> <span word="preparing">preparing</span> <span word="to">to</span> <span word="change">change</span> <span word="the">the</span> <span word="designation">designation</span> <span word="of">of</span> <span word="nail">nail</span> <span word="biting">biting</span> <span word="from">from</span> ‘<span word="not">not</span> <span word="otherwise">otherwise</span> <span word="classified">classified</span>,’ <span word="to">to</span> ‘<span word="obsessive">obsessive</span> <span word="compulsive">compulsive</span> <span word="disorder">disorder</span>’ <span word="in">in</span> <span word="its">its</span> <span word="upcoming">upcoming</span> <span word="issue">issue</span> <span word="of">of</span> <span word="the">the</span> <span word="Diagnostic">Diagnostic</span> <span word="and">and</span> <span word="Statistical">Statistical</span> <span word="Manual">Manual</span> <span word="of">of</span> <span word="Mental">Mental</span> <span word="Disorders">Disorders</span>, <span word="NBC">NBC</span> <span word="News">News</span> <span word="reported">reported</span>.</p><p><span word="Habits">Habits</span> <span word="that">that</span> <span word="are">are</span> <span word="commonly">commonly</span> <span word="associated">associated</span> <span word="with">with</span> <span word="OCD">OCD</span> <span word="include">include</span> <span word="repetitive">repetitive</span> <span word="hand">hand</span>-<span word="washing">washing</span> <span word="and">and</span> <span word="hair">hair</span>-<span word="pulling">pulling</span>. <span word="The">The</span> <span word="disease">disease</span> <span word="is">is</span> <span word="characterized">characterized</span> <span word="by">by</span> <span word="unreasonable">unreasonable</span> <span word="thoughts">thoughts</span> <span word="and">and</span> <span word="fears">fears</span> <span word="that">that</span> <span word="lead">lead</span> <span word="to">to</span> <span word="such">such</span> <span word="repetitive">repetitive</span> <span word="behaviors">behaviors</span>.</p><p><span word="The">The</span> <span word="occasional">occasional</span> <span word="chewed">chewed</span> <span word="nail">nail</span> <span word="isn">isn</span>’<span word="t">t</span> <span word="an">an</span> <span word="indication">indication</span> <span word="of">of</span> <span word="the">the</span> <span word="disorder">disorder</span>, <span word="medical">medical</span> <span word="experts">experts</span> <span word="assure">assure</span>.</p><p>‘<span word="As">As</span> <span word="with">with</span> <span word="hair">hair</span> <span word="pulling">pulling</span> <span word="and">and</span> <span word="skin">skin</span> <span word="picking">picking</span>, <span word="nail">nail</span> <span word="biting">biting</span> <span word="isn">isn</span>'<span word="t">t</span> <span word="a">a</span> <span word="disorder">disorder</span> <span word="unless">unless</span> <span word="it">it</span> <span word="is">is</span> <span word="impairing">impairing</span>, <span word="distressing">distressing</span>, <span word="and">and</span> <span word="meets">meets</span> <span word="a">a</span> <span word="certain">certain</span> <span word="clinical">clinical</span> <span word="level">level</span> <span word="of">of</span> <span word="severity">severity</span>,’ <span word="Carol">Carol</span> <span word="Mathews">Mathews</span>, <span word="M">M</span>.<span word="D">D</span>., <span word="a">a</span> <span word="psychiatrist">psychiatrist</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="California">California</span>, <span word="San">San</span> <span word="Francisco">Francisco</span>, <span word="told">told</span> <span word="NBC">NBC</span> <span word="News">News</span>.</p><p>‘<span word="That">That</span> <span word="is">is</span> <span word="not">not</span> <span word="the">the</span> <span word="vast">vast</span> <span word="majority">majority</span> <span word="of">of</span> <span word="nail">nail</span> <span word="bitters">bitters</span>,’ <span word="she">she</span> <span word="said">said</span>.</p>
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