10-minute smartphone cortisol test

Researchers have developed a device that uses any smartphone to measure the cortisol concentration in saliva.

The phone test takes less than 10 minutes and costs less than $5, according to a study presented in Chicago at ICE/ENDO 2014, the joint meeting of the International Society of Endocrinology and the Endocrine Society.

“This innovation enables anyone with a smartphone to measure salivary cortisol quickly, accurately and affordably," said lead author Dr Joel Ehrenkranz, director of diabetes and endocrinology at Intermountain Healthcare.

"The device is a