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 …

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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.

Dec 18, 2025 · 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 …

Local health departments (LHD) are leading the community response to COVID-19. They provide vaccinations, boosters, testing, and guidance on quarantine and isolation. They can tell you how to …

Find diseases and conditions; healthy living; workplace safety; environmental health; injury, violence and safety, global health and more.

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Find information on health conditions, wellness issues, and more in easy-to-read language on MedlinePlus, the up-to-date, trusted health information site from the NIH and the National Library of …

Dec 2, 2004 · Everyday Health inspires and empowers people to live their healthiest lives, every day, through trusted, medically reviewed information and expert health advice from the nation's leading ...

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