It can be easy to forget to stay hydrated, particularly for people like athletes or soldiers. That’s why a number of groups have been developing wearable devices that measure the user’s hydration levels for them, letting them know when they’re getting low. One of the latest comes to us from North Carolina State University, and it can take the form of either a wrist strap or an adhesive chest patch.
The device incorporates two electrodes made of conductive silver nanowires, which are embedded in a matrix of a flexible, stretchable polymer known as polydimethylsiloxane.
via New Atlas
