The investigators compared height; weight; and levels of luteinizing hormone, testosterone, growth hormone, and cortisol in 220 marijuana-addicted and 217 nonpot-smoking boys.
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— Study adds to evidence for developmental abnormalities with teen marijuana use
Study participants who were described as “marijuana addicts” during boyhood were on average 4.6 inches shorter and 4 kg lighter at age 20 than nonsmokers, reported lead investigator Syed Shakeel Raza Rizvi, PhD, and colleagues at the PMAS-Arid Agriculture University Rawalpindi, in a presentation at the European Congress of Endocrinology in Dublin.
by Jeff Minerd, Contributing Writer, MedPage Today May 20, 2015
Chronic pot smoking may trigger a stress response that stimulates the onset of puberty but lowers growth hormone levels, the researchers suggested, on the basis of a separate set of laboratory experiments.
THC also connects with receptors on nerve cells in other parts of the brain that affect thinking, memory, coordination, and concentration. This can cause unwanted side effects, including:
Immune system problems. Using marijuana a lot might make it harder for the body to fight off infections.
Career problems. People charged under marijuana laws may end up with criminal records that hurt their plans for college or finding a job.