You can already track your sleep, your steps and your heart rate - but now your toilet wants in on the action. A new smart ...

Replacement cartridges that can last up to three months with semiweekly testing start at $100.

You read that right, I've had Withings' U-Scan device sat in my toilet monitoring my urine, but what exactly does it do?

How much would you pay to run your next race 2 percent faster? If you can run a 5K in 30 minutes, that’s a 36-second improvement; in the context of a 4-hour marathon, you would save almost 5 minutes.