Series : 5 digital health trends you'll see in 2015 (2)

Source : StartUp Health

2. Sweat sensor strips

Want even more insight into what's going on in your body? You'll soon be able to track your internal biochemistry with a simple biosensor strip.

Electrozyme is developing a printed, flexible strip sensor that inserts into the back of your wearable device and measures the metabolic substances secreted in your sweat, allowing you to track your electrolyte balance, hydration level, muscle exertion and physical performance. According to Electrozyme, the chemical analysis enabled by its disposable biosensors can give people actual insights into their metabolism that go way beyond steps and heart rate.

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"The advantage of tracking sweat using chemical sensors is that it gives insight into your body chemistry and how it is responding to your workout that is not available using traditional sensors," says Jared Tangney, Ph.D., co-founder and COO of Electrozyme, LLC. "Chemical sensors open up a whole new world of information that was previously never available in wearable devices."

Tangney sees a range of different applications for this technology, including letting you know when it's time to drink some water — something most of us probably need: according to some reports, up to 75% of Americans may be chronically dehydrated.