Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research.

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

NIH Virtual Tour: National Library of Medicine. NLM is the world's largest biomedical library and a national resource for health professionals, scientists, and the public.

The NIH invests most of its nearly $48 billion budget in medical research seeking to enhance life and to reduce illness and disability. NIH-funded research has led to breakthroughs and new treatments helping people live longer, healthier lives, and building the research foundation that drives discovery.

The National Institutes of Health (NIH) is the primary agency of the United States government responsible for biomedical and public health research. It was founded in 1887 and is now part of the United States Department of Health and Human Services.

NIH is made up of 27 Institutes and Centers, each with a specific research agenda, often focusing on particular diseases or body systems. NIH leadership plays an active role in shaping the agency’s activities and outlook. Learn more about NIH.

A part of the U.S. Department of Health and Human Services, NIH is the largest biomedical research agency in the world.

6 days ago · In the agency’s announcement, the NIH’s Office of Policy for Extramural Research Administration, or OPERA, wrote that $9 billion of the $35 billion total spent on research grants in fiscal ...

Find key NIH resources addressing safety, health and wellness. Welcome to the Division of Occupational Health and Safety (DOHS) The Office of Research Services, DOHS, serves the NIH in occupational safety and health through administration of programs, policies, and support.

Welcome to NCBI. The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.