Effect On Pot

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it should be
noted that Heath's work was sharply criticized for avoiding safeguards of bias and reporting "changes" that occur normally in the
mammalian brain. Wu et al. found a correlation between cannabis use and low sperm counts in human males. This is misleading because a
decrease in sperm count has not been shown to have a negative effect on fertility and because the sperm count returns to normal after
cannabis use has stopped.. Another claim made was that cannabis causes chromosome breakage. The primary source for this are studies
that were conducted by Dr. Gabriel Nahas in the early 1980s. Nahas observed abnormalities in somatic (not sex) cells of rhesus
monkeys in vitro (i.e., in test tubes and petri dishes) and then made the unjustified conclusion that these changes would occur in human
bodies in vivo (in the body). Nahas' work was criticized by his colleagues and, in 1983, he backed away from his own conclusions. A
widely held claim has also been that cannabis ...

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not
be smoked: In Middle Eastern countries, it has been consumed through teas and food for centuries, avoiding the carcinogenicity of smoke
altogether. Despite cannabis' known negative effects to lung function, it has never been reported to cause a single instance of lung cancer.
Tobacco, though, is expected to kill 400,000 people this year. If cannabis is so much more dangerous to a user's lungs than tobacco and
is so much more carcinogenic, why aren't there stacks of reports of cannabis-induced lung cancer? One interesting theory is that it's
because tobacco tars are significantly radioactive, while marijuana tars aren't at all. Winters found that a pack-and-a-half-a-day smoker
...

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