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Adhesive film turns smartwatch into biochemical health monitoring system

UCLA engineers have designed a thin adhesive film that could upgrade a consumer smartwatch into a powerful health-monitoring system. The system looks for chemical indicators found in sweat to give a real-time snapshot of what’s happening inside the body. A study detailing the technology was published in the journal of Science Advances.

The underside of this custom-built smartwatch contains a double-sided adhesive that can detect metabolites and nutrients present in body sweat.

Smartwatches can already help keep track of how far you’ve walked, how much you’ve slept and your heart rate. Newer models even promise to monitor blood pressure. Working with a tethered smartphone or other devices, someone can use a smartwatch to keep track of those health indicators over a long period of time.

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