When a person is overweight, they have a condition of excessive fat deposits.

Obesity is a chronic complex disease defined by excessive fat deposits that can impair health. There potentially may be an increased risk of type 2 diabetes and heart disease due to obesity. Bone health and reproduction can be affected by obesity. Additionally, it can increase the risk of certain cancers. Obesity influences the quality of living, such as sleeping or moving.

By measuring people's weight and heights and by calculating the body mass index (BMI) - the diagnosis of overweight and obesity can be made. BMI is the marker of fatness and additional measurements, such as the waise circumference, can help the diagnosis of obesity.

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