Health has a variety of definitions, which have been used for different purposes over time. In general, it refers to physical and emotional well-being, especially that associated with normal functioning of the …

Mar 21, 2025 · Find science-based health information on symptoms, diagnosis, treatments, research, clinical trials and more from NIH, the nation’s medical research agency.

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Jan 4, 2026 · health, in humans, the extent of an individual’s continuing physical, emotional, mental, and social ability to cope with his or her environment. This definition is just one of many that are possible. …

May 15, 2025 · In 1946, the World Health Organization (WHO) defined health with a phrase that modern authorities still apply: “Health is a state of complete physical, mental, and social well-being and not...

Explore topics in nutrition and fitness that impact overall health, well-being, and energy. Stay updated with the latest health and medical news. Learn about the best products to support your...

Find the best information about living a healthier life from the trusted medical team at Harvard Medical School. Trusted advice for a healthier life.