When a Watch Reading Is Worth a Doctor's Time

It is eleven at night and your watch has shown you a number you do not like. Ten minutes later you are searching your symptoms and feeling worse. Everyone with a wearable has had that evening. The device is not โ€ฆ

Where Your Health Data Lives and How to Move It

You have worn a band for two years. The strap is finished and the battery is tired. You fancy a different brand now. One question stops you. What happens to two years of walking and sleeping? Most people assume it โ€ฆ