MIT's new device uses light to measure blood sugar levels without any needles, and a wearable version is already in the works ...

As a certified personal trainer, I tested 16 wearables while training, running and swimming. Here are the best fitness ...

Certain supplements contain compounds that the body can use to make nitric oxide, but they don’t contain nitric oxide itself. Nitric oxide is produced naturally by the human body and is one of the ...