Nicotine is highly addictive that holds millions of people in its grasp. An average cigarette yields about 2 mg of absorbed nicotine; in lesser doses of that order, the substance acts as a stimulant in mammals, while high amounts (50–100 mg) can be harmful. This stimulant effect is a contributing factor to the addictive properties of tobacco smoking. Nicotine's addictive nature includes psychoactive effects, drug-reinforced behavior, compulsive use, relapse after abstinence, physical dependence and tolerance. This dependence leads to life threatening diseases and overall lessening in quality of live. [IMAGE: https://steemitimages.com/DQmec3cAphAiv766NipF4u4zo9FNthdyBrtcvaX7mEQJwpo/sneezing.png]