How the field of cardiology is taking steps to fight the world's number one killer.

Cardiovascular disease claims 18.6 million lives globally each year. 'Health at Heart' a news-style programme by ITN Business and presented by Louise Minchin, looks at the importance of heart health, showcases the advances in heart research and technology and raises awareness around the prevention of heart conditions.

From the revolutionary treatment being developed by King's College London that could teach the heart to repair itself through to the technology being created to help assess and detect the onset of atrial fibrillation, the programme explores the cutting-edge research and the healthcare technologies leading the charge.

Wearables shaping the future of healthcare

Exercise is one way to prevent heart disease, and wearable devices are a great way to help us move more.

Now devices like Fitbit have developed far beyond this and can provide real insight into the wearer’s cardiovascular health, helping people track their heart rate, sleep, mental wellbeing, activity, and more. New health features could even help assess and detect the onset of atrial fibrillation, which increases your stroke risk.

Louise Minchin spoke to Dr Kapil Parakh, Medical Lead at Fitbit and Practising Cardiologist, and Dr Susan Connolly, Consultant Cardiologist at University Hospital Galway, to discuss this further.

Watch the full Health at Heart programme (