This Shopping Trolley Can Tell if You’re at Risk of a Stroke

It has electrocardiogram (ECG) sensors embedded in its handles which screen you for heart irregularities as you shop. Researchers at Liverpool John Moores University fitted the sensors into 10 trolleys and rolled them out at 4 supermarkets in Liverpool, UK. Shoppers were invited to hold the handlebar for at least 60 seconds. If the sensor didn’t detect an irregular heartbeat, it lit up green. Over 2 months, the trolleys screened 2,155 people. They detected atrial fibrillation in 39 people who were swiftly able to book a cardiologist appointment.