Scientists create earbuds that can detect an irregular heartbeat - and believe they could replace ECGs in just TWO years

Daily Mail - Science & tech 

Fashionable earbuds can be used to detect an irregular heartbeat, by tracking the electrical activity of the heart. Researchers at Imperial College London have created a device worn inside the ear, and just a little larger than an earbud, which can take an ECG reading all day long. A new study has found it performs about as well as a conventional ECG using electrodes on the chest, for two out of three measurements. But while the earbud detects a weaker signal from the heart than a chest ECG, because it is further away across the body, it has the advantage of being worn easily for hours at a time. That could help people detect much more quickly, without visiting a doctor, if they have a heart rhythm disorder.