On 5 July 1948, the NHS was born, promising post-War Britons health support from cradle to grave, free at the point of delivery. Seventy-five years later, and the service is constantly under pressure, and questions are being asked about how sustainable its future is.In this episode of the Sky News Daily, Sally Lockwood spends time with staff, patients, and newborns on the maternity unit at Whittington Hospital, in North London.She examines how services have evolved over the last 75 years for the Service, the pressures on staff as they try to cope after lockdown - and the future for one of Britian's most cherished creations.Producer: Emma WoodhouseInterviews producer: Alex EddenEditor: Paul StanworthPromotions producer: David Chipakupaku