Identical twins may be born with nearly identical DNA, but their choices throughout life – including diet, environmental toxicity, and the chemicals they are exposed to – can alter their genetic expression and influence the way they look. Because identical twins are an excellent study to determine the effects dietary and lifestyle choices may have on the human body, a lot can be learned from comparing twins who behave differently – a critical difference being smoking. Smoking, being one of the leading contributors to diseases of affluence and diminished life expectancy, is a habit that negatively impacts the body in a variety of ways. It has been linked with autoimmune disease, osteoporosis, heart disease, stroke, and cancer. But unfortunately the nicotine and high chemical load in most cigarettes are extremely addicting, therefore long-time smokers find it difficult to stop. According to the University of Colorado in Boulder, genetics play a significant role in if and how smokers quit. Those who may be described as ‘emotional’ tend to have a more difficult time quitting, for it is due to emotional reasons that most people light up in the first place. To suppress anxiety, anger, sadness, and even joy, those who have a difficult time dealing with their feelings may find themselves more easily hooked. And if all this is true, there is no better evidence than the photo comparisons below. Identical twins – one being a long-time smoker – are compared, and the differences between their faces are very evident. Those who smoke tend to have more wrinkled skin, bags underneath their eyes, and ridges around their lips. Can you guess which twins are smokers? ( Sxource: )

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