Is switching to e-cigarettes less bad for you than regular cigarettes, as far as lung/bronchial function is concerned?
They are extremely better! It is only water vapor and nicotine that you are smoking so it is still addictive but it will stop damaging your lungs and give them time to restore thenselves!
E-cigarrettes are considered to be much better than regular cigarettes because they contain less nicotine. However, they are also very addictive and may eventually lead to lung/bronchial cancer.