sweat

The $70 Smart Gx Bottle and Sweat Patch connect to a smartphone app.

But 'different' doesn't always mean 'better.'

Just what can your perspiration tell you?

Stanford's device tracks cortisol levels at the very moment they're relevant.

You don't have to run a marathon to get non-intrusive health data.

For the founder of this Peruvian startup, the crusade is personal.

The best long-form writing on technology and more in print and on the web.

#gymgoals #deadlift #gymlife #teamawesom #noshirt

Thankfully, the headband and earpads are washable.

Berkeley's sensor can tell you when to chug Gatorade.

Future wearables might track a lot more than your heart rate or step count.