Activity

A Patch That Detects Flush Of Embarrassment Or A Fluttering Heart Has Been Developed. The Sensor Monitors How The Skin Stretches And Contracts With Each Heartbeat/Breath Or Minute Tightening/Relaxation Of The Skin Each Time A Corresponding Muscle Is Flexed. The Device May First Be Used For Sleep Disorder And Heart Conditions.

https://www.futurity.org/skin-sensors-wearable-technology-2136302-2/

A sensor that sticks to the skin can pick up signals like a blush or heartbeat and beam health readings to a receiver clipped to your clothes.