Passive smoking refers to the inhalation of smoke from a cigarette, cigar or any other tobacco-smoking device in the vicinity. It’s often dubbed the silent killer and is more dangerous than most believe. Exposure to second-hand smoke is as bad as active smoking and passive smokers often suffer from lung problems, breathlessness and allergies.
The first global study on passive smoking estimated that it causes 600,000 deaths every year. One-third of those killed are children who are often exposed to smoke at home, the World Health Organisation (WHO) estimated. Just by getting yourself exposed to smoke, you unknowingly expose yourself to all kinds of health problems. Women and children are especially vulnerable to the dangers of second-hand smoke.