PPT On Overweight and Obesity

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Overweight and Obesity Presentation Transcript:
1.Overweight and Obesity

2.What do you mean “overweight” and “obesity”?

3.obesity
Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, minimizing the life expectancy and the life quality of patients. Obese are people whose body mass index (BMI), a measurement obtained by dividing a person's weight in kilograms by the square of the person's height in metres, exceeds 30 kg/m2.

4.Causes of obesity
They are a combination of:
excessive food energy intake,
lack of physical activity,
genetic susceptibility,
    Although a few cases are caused primarily by genes, endocrine disorders, medications or psychiatric illness.

5.BMI is defined as the subject's mass divided by the square of their height, expressed kilograms per square meter and calculated as:

6.Classification of bmi

7.Some modifications to the WHO definitions have been made by particular bodies. The surgical literature breaks down "class III" obesity into further categories whose exact values are still disputed.
Any BMI = 35 or 40 is severe obesity
A BMI of = 35 and experiencing obesity-related health conditions or =40–44.9 is morbid obesity
A BMI of = 45 or 50 is super obesity

8.Mortality
Obesity is one of the leading preventable causes of death worldwide. Generally, mortality is lower in BMI of 20-25kg/m2 in non smokers and 24-27kg/m2 . A BMI above 32 kg/m2 has been associated with a doubled mortality rate among women.
In the United States obesity is estimated to cause 111,909 to 365,000 deaths per year, while 1 million (7.7%) of deaths in Europe are attributed to excess weight. On average, obesity reduces life expectancy by six to seven years, a BMI of 30–35 kg/m2 reduces life expectancy by two to four years, while severe obesity (BMI > 40 kg/m2) reduces life expectancy by ten years.

9.Diseases associated with obesity
heart disease,
 type 2 diabetes,
obstructive sleep apnea,
certain types of cancer,
and osteoarthritis.