Researchers tested 43 hair extension products and found 169 different chemicals, including dozens that have been linked to cancer, hormone disruption, developmental problems and immune disorders.

A new study finds a chemical commonly used in dry cleaning and household products may triple the risk of liver scarring, a condition that can lead to organ failure or death.

In a new study, nitrate levels well below the EPA limit for drinking water were associated with an increased risk of premature birth and low-birthweight babies.

Prenatal exposure to PFAS or “forever chemicals” is associated with an increased risk for high blood pressure later in childhood, especially among boys, according to researchers.