Can prenatal flame retardant and pesticide exposure harm your child's brain by age 4?

What's actually in it

Organophosphate flame retardants are added to couch cushions, car seats, baby gear, and electronics. Organophosphorus pesticides are sprayed on fruits, vegetables, and lawns. Both types share a similar chemical structure and enter your body through dust, food, and air. During pregnancy, they cross the placenta and reach the developing baby's brain.

What the research says

A 2026 study in Environ Int followed pregnant women in Shanghai and tested their children's brain development at age 4. The researchers found that babies exposed to higher levels of organophosphate flame retardants and pesticides in the womb scored lower on tests of thinking, language, and motor skills.

The effects were seen at exposure levels common in everyday life, not just in heavily contaminated areas. Both flame retardants from furniture and pesticides from food contributed to the problem.

During pregnancy, vacuum often with a HEPA filter to reduce flame retardant dust. Choose organic produce when possible, and wash all fruits and vegetables well. Avoid using pesticide sprays inside your home.