A smartphone application that tracks a person’s heart rate may be able to detect diabetes using a photoplethysmography signal, which is easily measured using a smartphone’s light and camera, according to a study presented at the American College of Cardiology Scientific Session.

A personal survey of patients with atrial fibrillation (AF), one of the most important causes of irregular heartbeats, has found that the majority of triggers for the condition are easily modifiable lifestyle choices, including alcohol, caffeine, exercise and lack of sleep.