instantpaydaynetwork.com What happens when tobacco burns the nicotine enters the body? Well the lungs absorb the nicotine and this in turn easily passes into the bloodstream. Nicotine, the substance that causes the addiction itself is however not the only substance that cigarettes contain. Besides tar like substances and other known carcinogens, cigarettes are known to contain over 4000 other chemicals, the effects of many of which are not fully understood. The toxicity is most destructive component that a smoker absorbs along with addictive doses of nicotine. All these substances make smoking the addiction and destruction it is. Smoking produces effects that only worsen over time because continuous smoking overrides the bodys ability to rid itself of the toxins. As a result there is toxin accumulation in the heart, lungs and blood vessels besides other secondary toxin deposits in other organs. It is well known today that smoking is directly responsible for cancer of lungs. Besides lung cancer, smoking also causes cancers of other organs which come in contact with the smoke directly like mouth, throat, esophagus and the airways (Bronchi). Other organs which can be affected include stomach, pancreas, urinary bladder and even kidneys which are essential in keeping toxicity levels to a minimum in the body.