V. HABITUATION AND CESSATION
Note that some heavy smokers who stop cold turkey do not get symptoms of withdrawal.
C. Effect of Cessation
Rosenberg et al. indicated that cessation of smoking significantly reduces cardiovascular risk over a 1- to 3-year period with an exponential decline approaching the risk in ex-smokers within 5 years of cessation. Reportedly, Seargent et al. indicate that a citywide smoking ban in public places over a 6-month period in Helena, Montana, reduced the incidence of acute MI by 60% during that time period.
There is no doubt that smoking causes chronic bron¬chitis and emphysema which leads to corpulmonale, heart failure due to lung disease; this debilitating disease can be arrested by cessation of smoking.
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