We all know that when we exercise, we lose water due to sweat. We also know that sweat is essential to enabling the body to control its temperature, as well as remove impurities to keep us healthy.
Sounds like sweat can do a lot! And thanks to this tool, it can even help you improve your exercise and make you more fit.
According to Futurity:
A little larger than a quarter and about the same thickness, the simple, low-cost device analyzes key biomarkers to help a person decide quickly if the user needs to drink more water, replenish electrolytes, or even seek medical help.