Cigarette smoking is injurious to health is something that we have been hearing for ages now. But some people find it difficult to quit smoking despite all the awareness created around them and knowing about the immediate ill-effects of tobacco and its smoke. Not only people who smoke are susceptible to various diseases and illnesses as grave as cancer but even people who are non-smokers but stay in the vicinity of a smoker is also at risk. Yes second hand and third-hand smoke can be equally dangerous. Here Dr Duru Shah Director Gynaecworld Center for Assisted Reproduction & Women’s health