Review Finds Mixed Signals on Pregnancy Phone Use

A systematic review of studies on mobile phone use during pregnancy found no clear evidence of broad harm, but reported possible associations between prolonged or frequent use and changes in fetal or newborn heart function and a higher risk of preterm birth. The findings across studies were mixed, and researchers emphasized that the evidence is limited and does not establish that phone exposure causes these outcomes. The authors called for better-designed research with consistent measures of exposure, rather than recommending that pregnant people stop using mobile phones.