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A. J. Jacobs
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<p>Arnold Stephen Jacobs Jr., commonly called A.J. Jacobs (born March 20, 1968) is an American <a href="/facts/Media_of_the_United_States/3sv5kXoy">journalist</a>, author, and lecturer best known for writing about his lifestyle experiments. He is an editor at large for <i><a href="/facts/Esquire_(magazine)/cbtwRf8q">Esquire</a></i> and has worked for the <i><a href="/facts/Antioch_Daily_Ledger/eTJn20bM">Antioch Daily Ledger</a></i> and <i><a href="/facts/Entertainment_Weekly/BhADudJx">Entertainment Weekly</a></i>. </p>