Identical twins are born with nearly identical DNA; they look same and cannot be distinguished easily. As they grow their choices throughout life- including diet, environment and the chemicals they are exposed can alter their genetic expressions and looks. One can easily tell the difference between them. The identical twins are the best study to determine the effects of lifestyle choices may have on human body. There are numerous things learned from comparing them and out of that, a critical difference is noticed of smoking.
Smoking is a practice in which a substance is burned and the resulting smoke breathed in to be tasted and absorbed into the bloodstreams. It is one of the most common forms of recreational drug use. Smoking is one of the leading causes of preventable death globally. It causes deadly diseases like vascular stenosis, lung cancer, heart attacks and chronic obstructive pulmonary disease.
According to the University of Colorado in Boulder, genetics play an important role in and how smokers quit. Unfortunately, the nicotine and high chemical load in most cigarettes are extremely addicting and pose the problem for long time smokers to quit. It also includes the type of people are like who are emotional tend to have more time in quitting due to emotional reasons. This is the first reason people light up their cigarettes and became addicted. Even people used it to suppress anxiety, anger, sadness and even to enjoy and look cool. Education and counseling by physicians of children and adolescents have been found to be effective in decreasing the risk of tobacco use.
These all are true facts and can be cleared with the evidence of photos of identical twins- one being long time smoker are compared and the differences between their faces are evident.