Health, as defined by the World Health Organization, is a condition characterized by a capacity to perform the activities of life in its best possible condition. This definition is broad enough to include the ability to survive and work normally in a healthy condition, with limitations that may be perceived or predictable despite the condition. A wide variety of definitions have also been applied over time to different purposes. These definitions are intended to help people understand their bodies, their health, and how to stay healthy and develop it.
Many diseases and other disorders affect people of all ages and demographics; however, some conditions are more common and severe in certain groups than in others. One of the major goals of public health and nutrition is to identify and promote healthy practices and healthy lifestyles. Some examples of these practices include teaching children about and promoting healthy food choices; encouraging adults to get regular checkups and screenings for heart and other health concerns; and providing information and resources for people of all ages on the risks, benefits, and ways to become healthy. Creating and maintaining a community of support for people who are striving to be healthy and remain in good health is also another important component of the public’s interest in healthy practices and lifestyle.
Studies have shown that people living in developed countries are generally healthy, but they are more likely to experience high levels of stress, unhealthy diets, and other risk factors. Developed countries typically have high levels of smoking, obesity, unhealthy diet, high blood pressure, poor consumption of water, and other health-related issues. More people in developed countries are living with high blood pressure, Type 2 diabetes, and other heart diseases than in other regions of the world. Those in the United States are living longer than ever, but research has shown that the average person in developed countries are living with high blood pressure, Type 2 diabetes, and other heart diseases. Thus, the public’s interest in learning about healthy diet and stress reduction techniques, as well as the importance of a healthy lifestyle in overall health, are two areas where additional research and education could lead to significant improvements in public health.