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Health, as defined by the World Health Organization (WHO), is "a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity." This definition has been subject to controversy, as it may have limited value for implementation. Health may be defined as the ability to adapt and manage physical, mental and social challenges throughout life.

Selected general articles

Did you know...

  • ... that in animal studies of the health and safety hazards of nanomaterials, carbon nanotubes had similar inhalation exposure effects to asbestos?
  • ... that the 2011 Löfstedt Report proposed to exempt many British self-employed people from health and safety regulations?
  • ... that when introducing actress Sharon Stone, Pulitzer Prize-winning journalist Monroe Karmin attributed her "wellness, fitness, and positive attitude" to her choice of undergarments?
  • ... that Luke Fildes' painting The Doctor was used to promote state-run healthcare in Britain and to campaign against it in the United States?
  • ... that Alice and Alastair MacLennan, both experts in reproductive health, were caught by surprise and had to deliver their own baby at home?
  • ... that the initiation ceremonies for Japan's blind necromancers, known as itako, involve "sleeplessness, semi-starvation and intense cold"?

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In the news

3 January 2019 –
Iran's health minister Hassan Ghazizadeh Hashemi resigns in protest against a medical budget. His resignation was accepted by President Hassan Rouhani. (PressTV)

Health topics


Main categories: Health, Self care, and Healthcare occupations


See also: Biology (below)

Health – Health is a state of complete physical, mental and social well-being. this is a level of functional and (or) metabolic efficiency of a person in mind, body and spirit; being free from illness, injury or pain (as in “good health” or “healthy”). The World Health Organization (WHO) defined health in its broader sense in 1946 as "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity."

  • Death – cessation of life.
  • Exercise – any bodily activity that enhances or maintains physical fitness and overall health and wellness. It is performed for various reasons including strengthening muscles and the cardiovascular system, honing athletic skills, weight loss or maintenance, and mental health including the prevention of depression. Frequent and regular physical exercise boosts the immune system, and helps prevent the "diseases of affluence" such as heart disease, cardiovascular disease, Type 2 diabetes mellitus and obesity.
  • Nutrition – provision, to cells and organisms, of the materials necessary (in the form of food) to support life.
  • Life extension – The study of slowing down or reversing the processes of aging to extend both the maximum and average lifespan.
  • Health sciences – applied sciences that address the use of science, technology, engineering or mathematics in the delivery of healthcare to human beings.
  • Medicine – science and art of healing. It encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness.
    • Anesthesia – a way to control pain during a surgery or procedure by using medicine called anesthetics.
    • Cardiology – branch of medicine dealing with disorders of the human heart. The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology.
    • Clinical research – aspect of biomedical research that addresses the assessment of new pharmaceutical and biological drugs, medical devices and vaccines in humans.
    • Diabetes – a group of metabolic diseases in which the person has high blood glucose (blood sugar) above 200mg/dl, either because insulin production is inadequate, or because the body's cells do not respond properly to insulin, or both.
    • Dentistry – branch of medicine that is involved in the study, diagnosis, prevention, and treatment of diseases, disorders and conditions of the mouth, maxillofacial area and the adjacent and associated structures (teeth) and their impact on the human body.
    • Emergency medicine – medical specialty involving care for undifferentiated, unscheduled patients with acute illnesses or injuries that require immediate medical attention. Emergency physicians undertake acute investigations and interventions to resuscitate and stabilize patients.
    • Obstetrics – medical specialty dealing with the care of all women's reproductive tracts and their children during pregnancy (prenatal period), childbirth and the postnatal period.
    • Trauma and Orthopedics – medical specialty dealing with bones, joints and operative management of trauma.
    • Psychiatry – medical specialty devoted to the study and treatment of mental disorders. These mental disorders include various affective, behavioural, cognitive and perceptual abnormalities.
      • Autism a mental condition, present from early childhood, characterized by great difficulty in communicating and forming relationships with other people and in using language and abstract concepts.
      • Psychiatric survivors movement – is a diverse association of individuals who either currently access mental health services (known as consumers or service users), or who are survivors of interventions by psychiatry, or who are ex-patients of mental health.


General  – Health care • Health care industry • Health disparities • Mental health • Population health • Preventive medicine • Public health • Complementary and alternative medicine

Self-care – Body composition • Life extension • Longevity • Physical fitness

Nutrition – Calorie restriction • Dietary supplements (Amino acids, Minerals, Nootropics, Nutrients, Vitamins) • Diet (nutrition) • Dieting • Healthy eating pyramid
Physical exercise – Stretching • Overtraining • Aerobic exercise • Anaerobic exercise • Sport • Walking
Hygiene – Cleanliness • Oral hygiene • Occupational hygiene

Health science – Dentistry • Occupational therapy • Optometry • Pharmacy • Physiotherapy • Speech-Language Pathology

Medicine – Midwifery • Nursing • Veterinary medicine • Dentistry • Holistic Medicine
Human medicine – Anesthesiology • Cardiology • Dermatology • Emergency medicine • Endocrinology and Diabetology • Epidemiology • Geriatrics • Hematology • Internal medicine • Nephrology • Neurology • Oncology • Pathology • Pediatrics • Psychiatry • Rheumatology • Surgery • Urology
Illness  – Aging • Alcoholism • Atrophy • Deficiency disease • Depression • Disease • Disorders (types) • Drug abuse • Eating disorder • Foodborne illness • Malnutrition • Obesity • Smoking


Acronyms in healthcare • Abbreviations  (for medical organizations and personnel) • Alternative medicine • Pharmaceutical Drugs • Psychiatric drugs (by condition treated) • Psychotherapies • Reference ranges for common blood tests • Surgical procedures • Symptoms
Genetic disorders • Infectious diseases • Mental illnesses • Notifiable diseases • Neurological disorders • List of DSM-IV codes
Foods and Nutrition
Antioxidants in food • B vitamins • Beverages • Cuisines (African • Americas • Asian • European • Oceanic) • Diets • Foods (Food origins • Fruit • Herbs and spices • Meat • Nuts • Prepared foods • Seafood • Seeds • Vegetables) • Food additives (Codex Alimentarius) • Macronutrients • Micronutrients • Nootropics (smart drugs) • Poor nutrition



Recognized content

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