BPS 1101 Lecture Notes - Lecture 8: Jean Nicot, Chewing Tobacco, Isotopes Of Polonium
16 May 2016
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Document Summary
Tobacco is the most dangerous substance in the world. Lower respiratory disease 5. 1% caused by/ related to tobacco. Top 4 causes of death caused by tobacco. Tobacco kills 420 000 per year (north america) Columbus discovered this during his 2nd day in the new world. Tobaggo was a major exporter of this ---> spain. Smoke burned through tube and acid condensed. When they burn, they don"t produce so much acid. These two factors increase exposure to toxic substances. Average smoker smokes 10 000 cigarettes each year. 2 mg per cigarette required to addict smoker. Drug binds to receptor but doesn"t have right chemical property to give correct shape change. Blocks normal messenger from reacting w/ receptor. Stop smoking takes many years for lung to look normal. 2004: 190 000 cases in north america. Tobacco companies paid movie stars to smoke in movies. Cigarettes were provided free to solders as part of rations.
