Secondhand Smoke

Breathing other people's smoke is known as passive, involuntary or secondhand smoking (SHS). It can also be called ‘environmental tobacco smoke’.

Smokers and nonsmokers alike inhale SHS and this is an unavoidable consequence of being in a smoke-filled environment.

Exposure to SHS has immediate health effects. It can reduce lung function; exacerbate respiratory problems; trigger asthma attacks; reduce coronary blood flow; irritate eyes; and cause headaches, coughs, sore throats, dizziness and nausea. There is no safe level of exposure to tobacco smoke and there are long-term health effects, especially with continued exposure over time.

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