Mental health is a concept that refers to a human individual's emotional and psychological well-being. Merriam-Webster defines mental health as "A state of emotional and psychological well-being in which an individual is able to use his or her cognitive and emotional capabilities, function in society, and meet the ordinary demands of everyday life."

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”. The organized provision of such services may constitute a health care system. This can include a specific governmental organization such as the National Health Service in the UK, or a cooperation across the National Health Service and Social Services as in Shared Care.

In alternative medicine, natural health is an eclectic self-care system of natural therapies concerned with building and restoring health and wellness via prevention and healthy lifestyles. Natural health includes breathing Buteyko Method, diet, exercise, chiropractic, naturopathy, herbalism, homeopathy, massage therapy, relaxation techniques (e.g. Yoga, Tai Chi), accupuncture, sauna, aromatherapy, ayurveda medicine, and Kneipp therapy.

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.


 

Most states set guidelines for a healthy diet -- these usually vary slightly from country to country based upon demographics.

Our mission is to protect people's health and safeties by ensuring risks in the changing work place are properly controlled.

People eat foods and not nutrients; as few people know which foods supply which nutrients, allowing people to self-regulate their diets means that they run the obvious risk of deficiency.

Due to past difficulties of educating people about nutrient intake, governments have opted to counsel on what foods to eat rather than on what nutrients to ingest.