First, I'd like to summarize the effects of these two drugs..
Tobacco use is the leading prevetable cause of death in the United States. Smokes is responsible for approximately seven percent of total U.S. health care costs, an estimated $80 billion each year (Society for Neuroscience statistic).
Nicotine acts trhough the weel known cholinergic nicotinic receptor. This drug can act as both a stimulant and a sedative. Immediately aftere xposure to nicotine, there is a "kick" caused in part by the drug's stimulation of the adrenal galnds and resulting discharge of epinephrine. The rush of adrenaline stimulates the body and causes a sudden release of glucose as well as an increase in blood pressure, respiration and heart rate. Nicotine also suppresses insulin output from the pancreas, which means that smokers are always slightly hyperglycemic. In addition, nicotine indrectly causes a release of dopamine in the brain regions that control pleasure and motivation. This is thought to udnerlie the pleasurable sensations experienced by many smokers.
Marijuana can distort perception, and alter the sense of time, space, and self. In certain situations, marijuana can produce intense anxiety. In radioactive tracing studies, scientists at the Society for Neuroscience and the University of Washinton found that tetrahydrocannabinol (THC), the active ingredient in marijuana, binds to specific receptors, many of which coordinate movment. This may explain why people who drive after they smoke marijuana are impaired. The hippocampus, a structure involved with memory storage and learning, also contains many THC receptors. This may explain why heavy users or those intoxicated on marijuana have poor short-term meory and problems processing complex information ("Dude... what did you just say?" "I don't know man..." "I'm so high"). Scientists recently discovered that these receptors normally bind to a natural internal chemical called anandamide, and ar e now working to see how this natural marijuana affects brain function.
It is proven that nicotine is, in fact, much more dangerous to the body than marijuana by ten-fold. However, the government will not ban nicotine because of the revenue in which paying smokers generate. For as much money is consumed in research for the cure of cancer and research to help elucidate the ability to inhibit the addictive properties of nicotine, it also produces a significant revenue. Cigarettes also gives thousands of people employment; imagine a general store without cigarettes... just not the same.
Hope I have been enlightening.




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In non-lethal amounts, of course.)
Smokers tell me it's an "all-purpose" drug...It calms you down, wakes you up, is great after a meal, etc. It does what you want, when you want...(apparently) But it doesn't work for me 

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