I'm dehydrated. How do I know? Withings U-Scan told me so, and it's based on what may be the best source for this information: my own urine. I know. Blech. But also, wow; home urine analysis in about ...

There will come a point when we’ve gone too far with health tracking. One could argue we have already arrived, but sometimes we really need to overindulge to rein ourselves in. Case in point: we can ...