Carrying too much body fat. Overweight is a very common problem today, affecting almost half of the developed world’s population. Usually defined as having a Body Mass Index (BMI, weight in kilograms divided by height in metres squared) over 25 (25-30, over 30 is termed “obese”), overweight reduces mobility and energy levels, increases the risk of diabetes, cardiovascular disease, certain cancers, and mood disorders including depression.
|The overweight range according to the Body Mass Index (BMI) is the area on the chart where BMI > 25.|
|Classification and external resources|
Excess weight has reached epidemic proportions globally, with more than 1 billion adults being either overweight or obese in 2003. In 2013 this increased to more than 2 billion. Increases have been observed across all age groups.
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use. But the accumulation of too much storage fat can impair movement, flexibility, and alter appearance of the body.