Health Canada
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Health Concerns

Second-hand Smoke and Children

Here are some facts of second-hand smoke effect on children.

  • Children regularly exposed to second-hand smoke (SHS) are at least 50% more likely to suffer damage to their lungs and breathing problems such as asthma.
  • In 2001, an estimated 800,000 children under the age of 12 were regularly exposed to SHS in the home from cigarettes, cigars or pipes.
  • Exposure to SHS during childhood is associated with increased risk of developing asthma as an adult.
  • If you are a non-smoker, exposure to second-hand smoke may increase your risk of getting either lung cancer, heart disease, or respiratory problems.
  • Second-hand smoke fosters the formation of blood clots that can lead to heart attacks and strokes.
  • SHS raises the heart rate and damages the heart muscle.
  • Passive smoking lowers the level of protective ("good") HDL-cholesterol in the blood.
Increased risk of childhood diseases from SHS