<p>Long after the initial effects of a drug wear away, its byproducts can linger in our blood, urine, and hair. And contrary to what many advertised drug tests might promise, not all substances leave their chemical signature in the body for the same amount of time.</p><p>Here's how long various drugs, from alcohol to morphine, stay in the body:</p><p><div class="KonaFilter image-container display-table click-to-enlarge"><div><div class="image on-image"><a title_source="Skye Gould/Business Insider" title_caption="" class="zoomin" href="https://static-ssl.businessinsider.com/image/58beefce491a3b51008b49e7-960/bi-graphicshow long drugs stay in your body.png"><span class="sprites click-to-enlarge-icon" title="Click to enlarge"></span><img src="https://static-ssl.businessinsider.com/image/58beefce491a3b51008b49e7-1200/bi-graphicshow long drugs stay in your body.png" alt="How long drugs stay in your body" data-mce-source="Skye Gould/Business Insider" /></a><p class="source"><span>Skye Gould/Business Insider</span></p></div><p></p></div></div></p>    <div class="margin-top">        <h3>NOW WATCH: <a href="http://www.businessinsider.com/why-cats-sleep-so-much-2017-2">Here's why cats sleep so much</a></h3>        <div>            <div>    <script src="http://player.ooyala.com/v3/6e12e8b3387a44daacfb73afba25a76e"></script>    <div class="ooyala-video-player" data-video-autoplay="false" data-video-id="x2cXRyOTE63uQ05gxqk1cw0AjGmIgsZF" data-player-variable="ooyalapopvideo" id="ooyalaplayer_popvideo" style="width:1280px;height:720px"></div>    <script>    if (typeof RunFunctions === 'undefined') { var RunFunctions = []; }     RunFunctions.push(function()    {         var ooyalapopvideo = OO.Player.create('ooyalaplayer_popvideo', 'x2cXRyOTE63uQ05gxqk1cw0AjGmIgsZF',{ autoplay: 'false' });     });    </script>    <noscript><div>Please enable Javascript to watch this video</div></noscript></div>        </div>        <script>(function() { function createPlayer() { OO.ready(function() { RunFunctions.forEach(function(ooyalaFunction) { ooyalaFunction(); }); RunFunctions = [];}); } createPlayer(); }()); </script>    </div>

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Here's how long various drugs stay in your body

Long after the initial effects of a drug wear away, its byproducts can linger in our blood, urine, and hair. And contrary to what many advertised drug tests might promise, not all substances leave their chemical signature in the body for the same amount of time.Here's how long various drugs, from alcohol to morphine, stay in the body:Skye Gould/Business Insider NOW WATCH: Here's why cats sleep so much if (typeof RunFunctions === 'undefined') { var RunFunctions = []; } RunFunctions.push(function() { var ooyalapopvideo = OO.Player.create('ooyalaplayer_popvideo', 'x2cXRyOTE63uQ05gxqk1cw0AjGmIgsZF',{ autoplay: 'false' }); }); Please enable Javascript to watch this video (function() { function createPlayer() { OO.ready(function() { RunFunctions.forEach(function(ooyalaFunction) { ooyalaFunction(); }); RunFunctions = [];}); } createPlayer(); }());

Long after the initial effects of a drug wear away, its byproducts can linger in our blood, urine, and hair.  And contrary to what many advertised drug tests might promise, not all substances leave their chemical signature in the body for the same amount of time.

Here's how long various drugs stay in your body

Erin Brodwin,Skye Gould

NOW WATCH: Here's why cats sleep so much

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