The National Institutes of Health is the largest biomedical funder in the world. Its mission is to seek fundamental knowledge about the nature and behavior of living systems and the application of that knowledge to enhance health, lengthen life, and reduce illness and disability. There are 27 institutes and centers that compose the NIH, and 24 of those offer funding opportunities and award grants. NIH funding is made through these institutes and centers.
There are five grant programs: