Lesson 20: Obesity

What is obesity?

Obesity is a metabolic disorder defined by excessive body fat accumulation harmful to health due to a positive energy balance.

How much % of earth population?

20

What is the bmi showing?

Simple indicator of the relation between weight and height that is frequently used to identify overweight

and obesity in adults

How is BMI calculated?

BMI is calculated as weight in kilograms divided by height in meters squared.

What are the main functions of adipose tissue?

Energy storage and hormone production, including leptin.

What is the difference between white and brown fat?

White fat stores energy and produces leptin, while brown fat is involved in thermogenesis.

How can obesity be classified?

By BMI, body fat percentage, body fat distribution, and clinical etiology.

What BMI defines obesity?

A BMI between 30 and 34 or higher defines obesity.

What types of body fat distribution exist?

Generalized, android (apple-shaped), gynoid (pear-shaped), and visceral obesity.

What is endogenous obesity?

Obesity caused by endocrine, neurological, genetic disorders, or chronic drug intake.

What is exogenous obesity?

Obesity caused by an imbalance between calorie intake and energy expenditure.

What are major risk factors for obesity?

Sedentary lifestyle, obesogenic environment, eating habits, social and economic factors, and genetics.

How is obesity treated?

Food education, physical activity, behavior modification, pharmacological treatment, and surgery in severe cases.

What BMI indicates surgical treatment for obesity?

BMI greater than 40.

How can obesity be prevented?

Limiting energy intake, increasing fruit and vegetable consumption, and regular physical activity.