A recently published report suggests that children who are exposed to passive smoking frequently suffer from vitamin D deficiency. The study also stated that lower levels of vitamin D are also associated with reduced asthma control in these children. Passive smoking : Passive smoking remains a major cause of concern with studies reporting that the victims of passive smoking are more frequently children as compared to adults. Second-hand smoking (SHS) may consist of up to 4000 chemicals that are extremely harmful.

SHS may be of two types - mainstream smoke (MSM) and sidestream smoke (SSM). MSM is the smoke that is directly exhaled by smokers while SSM is released from the tip of the cigarette. SSM is far more harmful as the smoke passes directly without any filtration and children exposed to SSM can suffer from ear infections, respiratory diseases, cardiovascular diseases, cognitive or…