OBESITY

Obesity is almost invariable in developed countries and almost all people accumulate some fat as they get older. The World Health Organization acknowledges that obesity (body mass index > 30 kg/m2) is a world-wide problem which also
affects many developing countries. Obesity implies an excess storage of fat, and this can most easily be detected by looking at the undressed patient.
Most patients suffer from simple obesity, but in certain conditions obesity is an associated feature.
Evenin the latter situation, the intake of calories must haveexceeded energy expenditure over a prolonged period of time. Hormonal imbalance is often incriminated in women (e.g. postmenopause or when taking contraceptive pills), but
most weight gain in such cases is usually small and due to water retention.
Not all obese people eat more than the average person, but all obviously eat more than they need.

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