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Physical health

Physical fitness is good body health, and is the result of regular exercise, proper diet and nutrition, and proper rest for physical recovery.

A strong indicator of the health of localized population is their height|weight, which generally increases with improved nutrition and health care.

Mental health

Mental health refers to an individual’s emotional and psychological well-being. According to the World Health Organization, there is no single “official” definition of mental health. Cultural differences, subjective assessments, and competing professional theories all affect how “mental health” is defined. In general, most experts agree that “mental health” and “mental illness” are not opposites. A combination of physical, emotional, social and most importantly mental well-being is necessary to achieve overall health.

Determinants of health Health maintenance

Achieving health and remaining healthy is an active process. Effective strategies for staying healthy and improving one’s health include the following elements:

Nutrition

Nutrition is the science that studies how people eat affects their health and performance, such as foods or food components that cause diseases or deteriorate health (such as eating too many calories, which is a major contributing factor to obesity, diabetes, and heart disease). Personal health depends partially on the social structure of one’s life.

Exercise

Exercise is the performance of movements in order to develop or maintain physical fitness and overall health. Proper nutrition is just as, if not more, important to health as exercise. Proper rest and recovery is also as important to health as exercise, otherwise the body exists in a permanently injured state and will not improve or adapt adequately to the exercise.

Hygiene Stress management

Prolonged psychological stress may negatively impact health, such as by weakening the immune system. Stress management is the application of methods to either reduce stress or increase tolerance to stress. Exercising to improve physical fitness, especially cardiovascular fitness, boosts the immune system and increases stress tolerance.

Health care

Health care is the prevention, treatment, and management of illness and the preservation of mental and physical well being through the services offered by the medical, nursing, and allied health professions. According to the World Health Organization, health care embraces all the goods and services designed to promote health, including “preventive, curative and palliative interventions, whether directed to individuals or to populations”.

Workplace wellness programs

Workplace wellness programs can include things like onsite fitness centers, health presentations, wellness newsletters, access to health coaching, tobacco cessation programs and training related to nutrition, weight and stress management. Other programs may include health risk assessments, health screenings and body mass index monitoring.

Public health

Public health is “the science and art of preventing disease, prolonging life and promoting health through the organised efforts and informed choices of society, organizations, public and private, communities and individuals.” It is concerned with threats to the overall health of a community based on population health analysis. Public health has many sub-fields, but is typically divided into the categories of epidemiology, biostatistics and health services. Environmental, social and behavioral health, and occupational health, are also important fields in public health.

Role of science in health

Health science is the branch of science focused on health, and it includes many subdisciplines. There are two approaches to health science: the study and research of the human body and health-related issues to understand how humans (and animals) function, and the application of that knowledge to improve health and to prevent and cure diseases.

Where health knowledge comes from Putting health knowledge to use

Applied health sciences also endeavor to better understand health, but in addition they try to directly improve it. The provision of services to maintain or improve people’s health is referred to as health care (see above).