National Institutes of Health (NIH) is the primary federal agency for conducting
and supporting medical research. Helping to lead the way toward important medical
discoveries that improve people’s health and save lives, NIH investigates ways to
prevent disease as well as the causes, treatments, and even cures for common and
rare diseases. Comprised of 27 Institutes and Centers, NIH provides leadership and
financial support to researchers in every state and throughout the world.