Definition of Health according to wikipedia is a prosperous state of body, soul, and socially to enable more people to live socially and economically productive. While the definition of health according to the World Health Organization (WHO) in 1948 states that the definition of health is "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity".

In 1986, the WHO, in the Ottawa Charter for Health Promotion, said that the definition of health is "a resource for everyday life, not the purpose of life Health is a positive concept emphasizing social and personal resources, as well as physical abilities.

According to Understanding Health Act
In this Act the definition of health is:
  • Health is a state of body, soul, and socially to enable more people to live socially and economically productive.
  • Health effort is all activities to maintain and improve the health conducted by the government and or society.
  • The health worker is any person who devote themselves in the field of health and have knowledge and skills through education or health which for certain types require the authority to make health efforts.
  • Health facilities are used to conduct health Reviews those Efforts.
  • Kesehatan adalah sesuatu yang sangat berguna
Health care is an effort penaggulangan and prevention of health problems that require examination, treatment or care, including pregnancy and childbirth.
Even simpler definition proposed by Larry Green and his colleagues wrote that health education is a combination of learning experiences designed to facilitate voluntary adaptations of the behavior conducive to health.

Aspects of Health
Basically it covers four aspects of health, among others:
A. Physical health is achieved if a person does not feel and complain of pain or the absence of complaints and is objectively not look sick. All organs functioning normally or not impaired.
B. Mental health includes three components, namely mind, emotional, and spiritual:
  1. Common sense is reflected in the way of thinking or way of thinking.
  2. Healthy emotional reflected in a person's ability to express his emotions, eg fear, joy, worry, sadness and so on.
  3. Healthy spiritual reflected in the way a person in expressing gratitude, praise, trust and so on to something beyond this mortal nature, namely God the Almighty. For example, can be seen from the spiritual healthy person's religious practices. In other words, a healthy spiritual is a situation where a person to worship and all the rules of their religion.
C. Social health realized if someone were able to relate to other people or other groups as well, regardless of race, ethnicity, religion or belief, social status, economic, political, and so forth, as well as tolerance and mutual respect.