As the NHS prepares to celebrate its 70th birthday next week, Dr Saleyha Ahsan, a clinical fellow at Ysbyty Gwynedd’s Emergency Department in Bangor, made a series of five short films for Channel 4 News about the work of the department.

The films will be shown on C4 News every night this week (starting Monday 25 June, at 7pm). In the first film Dr Saleyha looks at how the department tries to cope with the unrelenting demand for patient space in the department, which treats up to 52,000 patients each year.

In 2017 a £14 million redevelopment began, which will create more capacity to deal with peaks in demand while improving the environment for patients, staff and visitors alike.