Patch reads stress levels

A SKIN patch can tell you how stressed you are by analysing your sweat.

At present, it takes days to measure cortisol levels by sending blood samples off to labs.

The patch, developed by researchers at Stanford University in California, measures cortisol in sweat to give instant results.

Lead author Dr Onur Parlak said: “The wearable device provides advantages including non-invasiveness, ease of operation and user comfort.”