Obesity is a complex illness subsequent from relations of a wide-ranging variety of genetic, environmental and behavioral factors. It can lead to chronic medical disease that can lead to diabetes, high blood pressure, heart disease and other chronic illnesses. Obesity is challenging to treat and has a high relapse rate as most people who lose weight regain it within five years. The combined progress in quantitative genetics, genomics and bioinformatics has contributed to a better understanding of the genetic and molecular basis of obesity. Genes have an impact on every aspect of human physiology, development and adjustment and Science has recently shown that genetics may play an essential part in the development of obesity.
Despite what many believe, obesity is rarely caused only by the inheritable factor which, linked to obesity consists of only a small part of the overall risk. Different scientists can have different points of view that do not always agree. The study of obesity is a suitable example of a study where various scientists hold distinct opinions such as which environmental factors have the most significant impact
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Sedentary people burn a small number of calories in comparison with individuals who are physically active. Emotions can have some impact on people’s eating habits. Many people eat excessively in response to emotions such as tedium, unhappiness, stress or anger. About 30% of the people who seek out treatment for critical and worrying weight problems have difficulties with binge eating, although most obese people have no more psychological disorders than regular weight people. A link between social issues and obesity has also been established; Lack of money to purchase healthy food and with the availability at lower prices of fast food, lack of safe places to exercise can increase the risk of