<p>More and more parents are using melatonin to help their children sleep - but there is little research on the long-term effects. </p><p>So, what do we know about the risks and is it ok to give it to children as an aid to help sleep?</p><p>James chats to Paul Gringras, professor of children’s sleep medicine and neurodisability at Guy’s and St Thomas’ NHS Foundation Trust and Vicki Beevers, chief executive of The Sleep Charity. </p><p>Also this week, resident GP Margaret McCartney on the potential promise - and peril - of doctors using AI in the NHS, and should you eat your placenta? We hear from a dietician on whether there’s any evidence it’s good for you.</p><p>Presenter: James Gallagher Producers: Tom Bonnett, Debbie Kilbride &amp; Gerry Holt Editor: Ilan Goodman Production coordinator: Ishmael Soriano</p><p>This episode was produced in partnership with The Open University.</p>