Skip to main content


A wide variety of environmental exposures at different stages in life affect health and well-being. To promote the broadest possible assessment of these environmental effects on health, the National Institute of Environmental Health Sciences (NIEHS) created CHEAR—a comprehensive set of resources to enable NIH-funded researchers to include or broaden analyses of early life environmental exposures in their studies of health.

CHEAR is funded through grants from NIEHS, which is part of the National Institutes of Health (NIH), and is co-directed by David Balshaw, Ph.D., and Claudia Thompson, Ph.D., at NIEHS. CHEAR is part of a $144 million NIH effort to better understand environmental influences on child health and development that was announced in 2015.

CHEAR is composed of three grant-funded components:

What CHEAR Can Do

At no cost to studies currently or previously funded by NIH, CHEAR can provide a wide range of services, including:

  • Expert consultation on exposure analysis, study design, and data analysis and interpretation
  • Analysis of biological samples for biological, psychosocial, chemical, and physical exposures using state-of-the-art techniques
  • A data repository and associated data science tools
  • Statistical and data analytical services including support for meta analyses
  • Development and dissemination of new statistical methods and informatics tools
  • Support for pilot and feasibility studies.

Web Privacy Notice

CHEAR follows NIH rules about privacy of personal information. We do not collect any personally identifiable information about you during your visit to this website unless you choose to provide it to us. We never collect information for commercial marketing or any purpose unrelated to the NIH mission and goals.

For more information, see Web Policies.

For questions, please visit our Contact Us page or email us at