How do you know if second hand smoke is causing lung damage?

It is. Any exposure to cigarette smoke is causing damage to the lungs. The more the exposure the more damage there will be.

Related Questions

Can a few minutes of breathing in second hand smoke cause any significant damage to your lungs?

Likely not. Prolonged exposure to high levels of second hand smoke may increase risks of chronic lung diseases. A short (one short time interval) duration exposure to second hand smoke will not impact long term lung function for most people. If someone has severe lung disease at a baseline, then a short smoking exposure could have a serious impact (depends upon baseline lung function). Hope this helps. Read more...

Might exposure to second hand smoke during childhood cause an increased risk of lung cancer in my later years?

Yes. Second hand smoking can cause an increased risk of cancer. Google us department of health and human services the health consequences of smoking: a report of the surgeon general. Atlanta, georgia: centers for disease control and prevention, office on smoking and health, 2004. Read more...
Yes it can. Secondhand smoke does increase the chance of developing lung cancer, although much less so that actually smoking yourself. Estimates vary, but your risk is probably less than twice that of someone who never had any exposure (as opposed to 20-30 times higher in smokers). Read more...

Will having to breathe in four years of second hand smoke nearly on a 24-7 basis outside cause lung cancer?

Unlikely. Although the risk is quite low, it is not impossible since every single cigarette exposure increases the risk. Given the exposure is at an outdoor setting, I would not lose sleep over it in the absence of symptoms. Read more...

If you're allergic to cats, do cat allergens harm your lungs as much as second hand smoke?

Cat allergies. Cat allergies can give you asthma symptoms which usually reverse when you are not around cats anymore, unless you live with one. Smoking predisposes you to a myriad of lung issues, and can potentially cause lung cancer. If you live with a cat, get desensitized, see an allergist. Read more...

Can children exposed to second hand smoke actually expel smoke from their lungs?

Minimal. The second hand smoke, a much smaller concentration than directly inhaled smoke from a cigarette, will coat the interior lining of the lung and little will be exhaled. The solution: don't smoke around your kids (go outside) or quit altogether for the sake of your health (do you want to be sickly or perhaps die before your kids grow up?). Read more...