National Institute Of Environmental Health Sciences (niehs)

This study follows over 32,000 people who helped clean up the 2010 Deepwater Horizon oil spill or lived in affected areas. Researchers compare their health to people who were not exposed, using medical exams, lab tests, and phone interviews every two years. The goal is to learn a…

This study looks back at data from 221 women who took part in a fertility study in the 1980s. Researchers want to learn how things like lifestyle, drug use, and pollution affect menstrual cycles, getting pregnant, and pregnancy outcomes. No new participants are being enrolled; th…

This study asks 1,668 young African American women (ages 23-35) already enrolled in a long-term health study about their COVID-19 experiences. Participants fill out a 15-20 minute online or paper survey covering infection, vaccination, access to care, and pandemic impacts on work…

This study follows children who were part of an earlier infant study to see if things like hormones, feeding, and environment in early life affect when puberty begins. About 566 teens and their parents will fill out questionnaires, measure height and weight, and provide urine sam…