Study: Marijuana potency increases in 2007
(AP)
<p><a href="http://us.rd.yahoo.com/dailynews/rss/health/*http://news.yahoo.com/s/ap/20080612/ap_on_he_me/marijuana_potency"><img src="http://d.yimg.com/us.yimg.com/p/ap/20080612/capt.nyol58006120650.marijuana_potency_nyol580.jpg?x=93&y=130&q=85&sig=nFcglphP4FesozV7XtU2sg--" align="left" height="130" width="93" alt="In this May 3, 2008 file photo, a man smokes marijuana during a protest to fight stigmatization of marijuana consumption in Mexico City. Marijuana potency increased last year to the highest level in more than 30 years, posing greater health risks to people who may view the drug as harmless, according to a report released Thursday by the White House. (AP Photo/Eduardo Verdugo, file)" border="0" /></a>AP - Marijuana potency increased last year to the highest level in more than 30 years, posing greater health risks to people who may view the drug as harmless, according to a report released Thursday by the White House.</p><br clear="all"/>

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