Smoking is deadly for health and lungs. It is not possible to avoid this damage if you do not give up the bad habit of smoking. There are two types of smoking. Active and passive smoking.
1. Active smoking: When the smoker deliberately inhales the smoke emitted from burning cigarettes, bidis, cigars etc. directly into the lungs, it is called active smoking. As a result of active smoking, cancer-causing substances including nicotine, tar, carbon monoxide directly enter the lungs.
2. Passive smoking: When the smoke that spreads in the environment from burning cigarettes, bidis, cigars etc., enters the lungs of a non-smoker unintentionally, it is called passive smoking. As a result of passive smoking, cancer-causing substances including nicotine, tar, carbon monoxide enter the lungs.