Welltory packs a lot of science into its app to measure your stress levels

 There’s a lot of talk about the quantified self, but one of the grey areas remains working out your levels of stress. Usually this requires hardware devices. Now a New York based startup thinks it’s come up with an approach based on a specially developed algorithms and machine learning using simple heartbeat readings taken with a smartphone app. Welltory (iOS, Android) has also… Read More