hydration sensor

Gatorade, Northwestern University partner on sweat-reading hydration patch
By Dave Muoio | 05:30 pm | March 20, 2018
Lockheed Martin subsidiary developing passive hydration sensor
By Jonah Comstock | 11:12 am | June 10, 2014
What's missing from Apple's rumored Healthbook app's feature set
By Brian Dolan | 10:14 am | March 18, 2014