ne joint contains three times more tar than do cigarettes and is considered four times more dangerous (Courtwright 54). It dramatically increases the pulse rate and blood pressure during use. If marijuana is legalized, many projects that lung cancer will increase as the amount of marijuana use increases (Miner 44). These are all valid arguments, but cigarette smoking is legal, a booming business, and causes the same exact problems.
             There are a number of myths associated with the use of marijuana and its effects on your body that people who are opposed to its decriminalization repeatedly cite. One of these in that Marijuana causes brain damage. Dr. Robert Heath bases this claim on a study of the rehus monkey in the late 1970's. Heath's work was criticiz
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