Smoking refers to the inhalation and exhalation of fumes from burning tobacco in cigars, cigarettes and pipes. It is addictive. Studies revealed that the cigarette smoker is exposed to 4,000 chemicals which are found to be toxic.
Tobacco smoke contains nicotine which is classified as a poisonous alkaloid. Nicotine is an addictive drug that raises heart rates, irritates blood vessels, and raises the risk of blood clots. Tobacco smoke also contains other harmful substances such as carbon monoxide, ammonia, prussic acid, acrolein, aldehydes and tars.
People staying near smokers, also known as "passive smokers", who may involuntarily inhale the fumes or secondhand smoke, also suffer the same effects. Non-smokers who breathe in secondhand smoke take in nicotine and other toxic chemicals just like smokers do. The more secondhand smoke you are exposed to, the higher the level of these harmful chemical in your body. So, stay away from smokers. Report those who smoke in public to the authorities.
And when you grow older, never attempt to try smoking (even out of curiosity). It is bad for you and those around you.
Smoking causes lung cancer. Aside from this, there are other types of cancer also caused by smoking and they include: cancer of the kidney, mouth, esophagus, throat and the pancreas.
Cigarette smoking during pregnancy increases the risk of low birth weight, prematurity, spontaneous abortion and prenatal mortality in humans, which has been referred to as "the fetal tobacco". It also causes gum diseases and dental problems. - https://www.affordablecebu.com/