The definition of an obese person is a person who has excess fat tissue and a body mass index (BMI) value greater than 30. Body mass index is an indicator that measures weight compared to height. Excess fat tissue can have serious health consequences, such as diabetes, high blood pressure, and high levels of lipids in the blood.

Obesity is one of the most common medical conditions in western society today and one of the most difficult in terms of treating and treating obesity. Relatively little progress has been made in the treatment of obesity (except lifestyle changes), but much information has been collected on the medical consequences of obesity.


Causes and risk factors of obesity:

Until recently, obesity was associated with a lazy (sitting) lifestyle and persistent high-calorie intake. Today, however, these causes of obesity are known to be important, but there are also different genetic factors that play a role in the onset of obesity.

As evidence, in adoptive children, we see a pattern of obesity that is similar to the pattern we see in their biological parents, rather than the pattern we see in their adoptive parents. Research with identical twins has also shown that genetic factors have a greater influence on BMI than environmental factors.

It is estimated that between 40% and 70% of obesity can be attributed to various genetic factors and not to environmental or lifestyle factors.

Research in mice also showed that there are 5 genes associated with appetite, and these are the genes that lead to obesity. These genes are also present in humans. One of the main genetic factors in obesity is the hormone leptin.