Hi.,

Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health, leading to reduced life expectancy and/or increased health problems.^[1][2] In Western countries, people are considered obese when their body mass index (BMI),^[3] a measurement obtained by dividing a person's weight by the square of the person's height, equals or exceeds 30 kg/m², with the range 25-30 kg/m²defined as overweight. Some East Asian countries use stricter criteria.

Obesity increases the likelihood of various diseases, particularly heart disease,type 2 diabetes, obstructive sleep apnea, certain types of cancer, andosteoarthritis.^[2] Obesity is most commonly caused by a combination of excessive food energy intake, lack of physical activity, and genetic susceptibility, although a few cases are caused primarily by genes, endocrinedisorders, medications, or psychiatric illness. Evidence to support the view that some obese people eat little yet gain weight due to a slow metabolism is limited.