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The World Health Organization has accepted obesity as a global epidemic. The prevalence of obesity is increasing rapidly in industrialized and developing countries. In many countries, obese and overweight adults make up nearly 50% of the population; furthermore, a quarter of children around the world are overweight and obese. Obesity is a chronic systemic inflammation of the adipose tissue. The mechanism of energy intake and expenditure is a homeostatic process. When the balance is upset in favor of energy intake, the result is excessive fat accumulation, which causes a number of diseases....

Primary health care is a building block of a community’s public health services. Its main purpose is to prevent health problems in individuals and the public at large. It also plays a key role in environmental health. As such, primary health care is essential for all healthcare systems worldwide. This book provides a comprehensive overview of primary health care.