Some studies in heart research centers have proven a strong correlation between secondhand smoking and heart diseases. What occurs with smokers, regarding heart attacks at an early age, can also occur to non-smokers.
Scientifically proven effects of secondhand smoking on lungs include:
- Bronchial allergy and asthma, especially in children
- Chronic coughing and increased secretion of phlegm, continuous chest inflammation and shortness of breath
- Inefficiency of the lungs, where being exposed to cigarette smoke can lead eventually to shortness of breath even with the slightest effort
- The more exposure to smoke, the weaker lung function becomes
