The currently available evidence on the effects of nicotine and cigarette smoke shows that most of the harm caused by smoking arises not from nicotine but from other components of tobacco smoke and that nicotine is not a highly hazardous substance
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"We identified several metabolites or substances that were significantly different between exposed and unexposed children," Jeannie Rodriguez, associate professor at Emorys School of Nursing and lead author of the study, told USA TODAY
E N D Presentation Transcript Health risks of smoking Principal fatal diseases caused by smoking are cancer, COPD and CVD In addition, smoking is an important cause of morbidity Risks are dose and duration dependent On average, cigarette smokers lose 7.5 years of life Overall risk to smokers and never-smokers Never smoked 100 regularly 80 80 80 Current cigarette 59 smokers 60 % Alive 7.5 years 40 33 33 20 12 0 40 55 70 85 100 Age Doll et al BMJ 1994 Health benefits of smoking cessation Increased longevity Stabilisation of lung cancer risk (but not absolute decline) Heart disease risk declines towards non-smoker level over 10 years Accelerated decline in lung function reduced Improved reproductive health Improved recovery from surgery 20 mins: 8 hours: 24 hours: 48 hours: 72 hours: blood pressure and pulse rate return to normal blood nicotine & CO halved, oxygen back to normal CO eliminated
