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Join an NIEHS Study
National Institute of Environmental Health Sciences

Research for a Healthy Future

Your participation in clinical studies at NIEHS helps researchers discover how your environment affects your health. Please help us find new ways to prevent, diagnose, and treat illness and disease.

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Featured Studies

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Body Weight & Puberty Study

Do Overweight Girls Start Puberty Too Soon?

Girls seem to be going through puberty a lot earlier these days. Doctors think it may be related to body weight. Are you concerned that your daughter is overweight and may start puberty too soon?
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CaREFREE: Nutrition and Menstruation

Many women develop irregular menstrual cycles which may make it difficult to become pregnant and increase the risk of osteoporosis. Why do exercise and diet have this effect in some women but not others? This study will help us understand how nutrition, exercise, and the environment affect women's reproductive cycles.
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E-Cigs and Smoking

Researchers are trying to develop new biomarkers of tobacco smoke exposure and e-cigarette use.
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EPR: DNA & Your Environment

The Environmental Polymorphisms Registry (EPR) is a long-term initiative to collect approximately 20,000 DNA samples from individuals. These DNA samples will be used to examine risk factors for common health conditions such as heart disease, cancer, diabetes, asthma, and Alzheimer’s disease.
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NHALES: Asthma Study

Get Your Asthma Under Control

NHALES stands for Natural History of Asthma with Longitudinal Environmental Sampling. Your participation in the NHALES Study will contribute to research on how the environment affects the human body and asthma. Please consider joining today.
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Sample Collection Registry

Researchers are interested in developing a registry protocol to obtain biologic and environmental samples anonymously from adult volunteers for use in laboratory tests and studies. The samples will be used to determine if new tests are sufficiently valid and precise to be used in research studies and for quality control purposes.

People Like You Can Make an Impact

By participating in the NHALES Study at NIEHS, Jeff Long has learned to manage his asthma while contributing to our understanding of the condition.

Read Jeff's Story

Studies at NIEHS

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