Measuring it traditionally requires saliva or blood samples, along with expensive lab equipment. And what makes tracking even harder is that vitamin C levels fluctuate quite frequently, so there is no efficient, affordable way to monitor those changes in real time. Well, there wasn’t until now. There have been many previous attempts to create sweat sensors that can analyze various health metrics, such as stress levels, hydration – and yes, even vitamin C levels. What they all have in common is that they stick to the skin, so they're not that easy to forget about.
An engineering team from the University of California San Diego is redefining what health trackers can look like. They’ve developed the Smart Cup platform, and it’s pretty much an entire lab built into a small sticker that goes on the outside of any cup instead of on your skin. It’s battery-free, wireless, compact, and really cheap.
【MORE】