Review of 20 studies: phone use in pregnancy may affect the fetus

A systematic review of 20 studies found mixed evidence on whether smartphone radiation affects pregnancy. Some studies linked phone use to poorer fetal growth and altered fetal heart function, while two large studies found no link. The authors call for better-designed cohort studies.

• 20 studies on phone use and maternal and fetal health were reviewed
• One study of 90 mothers: 10 minutes of exposure reduced fetal cardiac output
• Another of 141 mothers: a phone 20 cm from the abdomen altered fetal heart rate
• Two large studies found no link to fetal growth