Why do you want to commit slow suicide (慢性自殺)? Surely you should know the bad effects of smoking. Over 4,000 chemicals (超過 4000 種化學物質) that causes different cancers (癌症), carbon monoxide(一氧化碳) that blocks (防礙)circulation of oxygen in your blood (氧氣於血液中循環), and greatly increased risks (大大增加風險) in many diseases, such as high blood pressure (高血壓), stroke (中風), heart diseases(心臟病), diabetes(糖尿病), impotence (不舉), etc.