Today, May 31st is the World No Tobacco Day. It's generally acknowledged as a special date to especially promote the campaign against tobacco.
Tobacco smoking is bad for your health because it damages the respiratory system and circulatory system. It ruins your lung, shrink your airway, and disturb the blood circulation. The easiest way to notice is to listen to the sound of breath of someone who has smoked for a long time. You will notice that there is wheezing noice when the person exhales,...