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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Learn how exercise affects metabolism and which workouts have the greatest impact. Doctors no longer recommend daily aspirin for most people, yet many still take it despite limited benefit and...

In general, it refers to physical and emotional well-being, especially that associated with normal functioning of the human body, absent of disease, pain (including mental pain), or injury.

Meet Daily Dose. 5-minute, expert-backed lessons packed with real world tips to help prioritize your health every day. A fitness instructor explains how to make winter the easiest season to...

Feb 2, 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. …

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

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...

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