About NIEHS

The National Institute of Environmental Health Sciences (NIEHS) is expanding and accelerating its contributions to scientific knowledge of human health and the environment, and to the health and well-being of people everywhere.

Welcome to NIEHS

The National Institute of Environmental Health Sciences is one of the 27 institutes and centers that makes up the National Institute of Health, which is part of United States Department of Health and Human Services. Our mission is to research how the environment affects biological systems across the lifespan and to translate this knowledge to reduce disease and promote human health.