shutterstock_52772131 30073

Babies who experience oxygen deprivation in utero--due to conditions including birth asphyxia, neonatal respiratory distress syndrome and preeclampsia--are more likely to develop attention deficit hyperactivity disorder (ADHD) later in childhood, a new study has found. ADHD affects an estimated 8.4 percent of American children between ages 3 and 7, the Centers for Disease Control says.

Image: Blood pressure cuff, via Shutterstock