What is smoking ? Smoking is a practice in which a substance, most commonly tobacco, is burned and the smoke is tasted or inhaled. This is primarily practiced as a route of administration for recreational drug use, as combustion releases the active substances in drugs such as nicotine and makes them available for absorption through the lungs .
Have main ingredients such as Caffeine, Tar ,Arsenic, Cadmium, Mercury, Nicotine.
The diseases from smoking are vascular stenosis, lung cancer, heart attacks and chronic obstructive pulmonary disease. Smoking during pregnancy may cause ADHD to a fetus.