Active smoking increases the risk of developing asthma. Adolescents who smoke more than 300 cigarettes a year are at 4 times the risk of developing asthma compared to their non-smoking peers. Active smoking is strongly associated with high incidence of asthma between ages 17 to 33.
It is also seen that those children who develop asthma by age 7, usually go in the remission but relapse by age 33 if they smoke.
Second had smoking is also associated with developing asthma in early life, especially, if the mother is a smoker. Many studies have shown that children of smoking mothers are two times are more likely to develop asthma than children of non-smoking mothers.
[ Dr K K Aggarwal is Padmashri and Dr B C Roy National Awardee, President Heart Care Foundation of India, Dean Board of Medical Education Moolchand Medcity, Sr Physician & Cardiologist, Visiting professor Clinical Research DIPSAR, Past President Delhi Medical Association, Past Academic and Research Wing Head IMA, Chairman Ethics Committee Delhi Medical Council. ]
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