Featured News and Research Highlights
December 16, 2025
Pollution Exposure and Allergies and Asthma: Evidence from the Add Health Study
A recent study using nationally representative data from Waves IV and V of the National Longitudinal Study of Adolescent to Adult Health (Add Health) examines the effects of long-term exposure to two widely cited pollutants, ozone (O₃) and particulate matter 2.5 (PM₂.₅), on allergy and asthma diagnoses in adolescents and...
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November 24, 2025
Adolescents’ Survival Expectations and Premature Mortality: Evidence From the Add Health Study
There is a large pool of research focusing on how adolescents’ perceptions of survival predict important aspects of their young adult lives, especially their physical and mental health, risky behaviors, and socioeconomic status. Using nationally representative data from Wave I of the National Longitudinal Study of Adolescent to Adult Health...
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November 19, 2025
Wave VI Biomarker Data Release
Add Health is excited to announce the following data are now available: Wave VI Anthropometrics Wave VI Cardiovascular Measures Wave VI Demographics Home Exam Wave VI Glucose Homeostasis Wave VI Hepatic Injury Wave VI Lipids Wave VI Medications Home Exam Current Add Health investigators can log in to the CPC Data...
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November 6, 2025
Wave VI Add CAPS Data Released
The following Add CAPS data are now available: Animal Naming Test This test provides data on a participant’s verbal fluency/language by assessing their ability to generate words within a semantic category under time constraints. Participants are asked to name as many animals as possible within a fixed time period. The...
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