Affectiva

One of the great but nebulous promises of wearable health trackers is that, by monitoring something 24-7 that previously was only ever monitored intermittently, it will help us discover new things about our bodies and health.

Waltham, Massachusetts-based emotions analytics company Affectiva has launched a new offering, called Emotion as a Service, that allows organizations to track the emotions of people interacting with their digital product or service.

Cambridge, Massachusetts and Milan, Italy-based Empatica is crowdfunding a new wristworn tracker device, Embrace, which brings clinically validated tracking methods to the consumer market.

Vitals This year, on Inc Magazine's list of the 5,000 fastest growing private companies, several of the companies listed were in the digital health space.