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Wearable device from Stanford measures cortisol in sweat

close up shot of a person's shoulder with sweat
Image credit: Getty Images
Jul 20 2018
Fellow, Research, Stanford

he hormone cortisol rises and falls naturally throughout the day and can spike in response to stress but current methods for measuring cortisol levels require waiting several days for results from a lab. By the time a person learns the results of a cortisol test – which may inform treatment for certain medical conditions – it is likely different from the current level of cortisol.

Now, a group led by materials scientist Alberto Salleo at Stanford University has created a stretchy patch that, applied directly to the skin, wicks up sweat and assesses how much cortisol a person is producing. A paper about the wearable sensor was published July 20 in Science Advances.

Co-author Scott Keene is a 2015 Stanford Graduate Fellow.

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