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Secondhand smoke — a combination of the smoke coming from the burning end of a cigarette or cigar (sidestream smoke) and the smoke that is exhaled by a smoker (mainstream smoke) — is almost as dangerous as smoking.
About Secondhand Smoke
Smokers might not intend to put the people around them in danger, but they are. Secondhand smoke contains more than 4,000 chemical compounds — from arsenic and ammonia to hydrogen cyanide — many of which increase the risk of cancer and heart disease.
Breathing in secondhand smoke can significantly increase someone's risk for:
- respiratory infections (like bronchitis and pneumonia)
- asthma (secondhand smoke is a risk factor for the development of asthma and can trigger attacks in those who already have it)
- coughing, sore throats, sniffling, and sneezing
- heart disease
So secondhand smoke doesn't just affect kids in the future. It can cause problems now, like affecting sports performance or the ability to be physically active.
Protecting Your Kids
Even now that fewer people are lighting up, chances are that someone in your family or someone you know still smokes. But it's never healthy to breathe in tobacco smoke — even occasional or short-term exposure can take a toll on the body.
If you smoke, try to quit. If you have other smokers in the family, offer support and encouragement to help them kick the habit. Quitting isn't easy because smoking is highly addictive. But there are many support groups and tobacco-free programs available to help people stop.
If you can't make your family completely smoke-free, you can still help protect your kids (and yourself!) from secondhand smoke by enforcing these two practical habits:
- Keep smoking limited to outside the house: Smoking should be done away from other people, especially kids and anyone who's pregnant. Smoke lingers in the air hours after cigarettes are put out. So even if someone smokes in a room alone, other people will eventually inhale that smoke, too.
Because smoke sticks to people and their clothing, when smokers come back inside, they should wash their hands and change their clothing, especially before holding or hugging children.
- Never smoke in a car with other people: Even exhaling out the window does little, if anything, to reduce smoke exposure.
Nonsmoking adults can more easily walk away from other people's smoke at home, work, restaurants, even friends' and family members' houses. But sometimes kids need help from their parents to lead smoke-free lives. So don't be afraid to speak up if someone is smoking near your child. Politely ask the person not to, but be prepared to move away from the smoker if the situation becomes uncomfortable.
Taking a stand on secondhand smoke will keep your whole family much healthier, and might even inspire others in your life to think about ending their unhealthy habit.
Reviewed by: Steven Dowshen, MD
Date reviewed: November 2011
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- Smoking and Asthma
- Lungs and Respiratory System
- Creating an Asthma-Safe Home
- Kids and Smoking
- Pregnancy Precautions: FAQs
- Bad Breath
- Smoking and Asthma
- What Kids Say About: Tobacco
- Smoking Stinks!
- Your Lungs & Respiratory System
- Helping a Parent Who Smokes
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Note: All information on KidsHealth® is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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