If you’ve ever given blood, you’ve likely experienced the discomfort of having a nurse struggle to find your vein. And if you’re anything like me, you’re probably used to someone jabbing at your arm for five minutes before giving up and moving to the other one because your veins are "difficult to find". But don't worry, this device is about to make the process a whole lot … [Read more...] about This technology shows nurses where your veins are