Air drawn in this way is also diffused and dilutes the smoker's toxic gases. Non-smokers don't breathe in air together with the smoke to diffuse the smoke's toxicity. Infants and children exposed to smoke are susceptible to numerous health risks. This is due to tobacco's smoke toxins entering the infant's immature body and paralyzing or damaging the body. Involuntary smoking also causes ear infections in children as their middle ears are still immature and the smoke attacks their immune system.
Passive smoking worsens asthmatic children.
It may also induce asthma in otherwise healthy children. Smoke has so many toxins that it causes lung cancer in non-smokers who inhale the smoke. Constant exposure to tobacco smoke doubles the risk of getting heart disease. Toxins from smoke remain for ages in the surrounding atmosphere. Smoke drifts and circulates to contaminate the entire house.