Boston Birth Cohort Study

The Boston Birth Cohort is a long-term research study following mothers and their babies from birth through childhood. The study aims to understand how factors during pregnancy and early life influence a child's health over time — including risk of conditions like asthma, obesity, and developmental differences. You may be eligible if: - You are a mother delivering a single live baby at Boston Medical Center You may NOT be eligible if: - Your pregnancy was the result of in vitro fertilization (IVF) - You are expecting multiple babies (twins, triplets, etc.) - Your baby has known chromosomal abnormalities or major birth defects Talk to your doctor to see if this trial is right for you.