We dig through the evidence on the effect of screen time on babies and young children, with the help of some parents and experts. And after hearing our story of a woman who got her voice back with the help of AI, a listener got in touch to tell us his own moving story of hearing his father’s voice for the first time in 50 years. Producers: Imran Rahman-Jones and Vuyelo Ndlovu Presenter: Shiona McCallum (Image: A baby holds a smartphone, looking at the screen while lying in bed. Credit: Getty Images.)