Smoking marijuana causes early puberty

Staff Report ISB: The scientists at the Pir Mehr Ali Shah Agriculture University (PMAS), Rawalpindi studied the levels of certain hormones involved in growth and puberty in the blood of 220 non-smoking and 217 marijuana-addicted boys. The research revealed that levels of puberty-related hormones such as testosterone and luteinising hormone (LH) were significantly high in the marijuana smokers. In contrast, growth hormone levels were decreased in this group. It was also found that non-

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