Sure, technology that supposedly reads human emotion has been on the scene for a while, along with concerns about its use. But now it looks like Apple may be getting in on the game. The tech titan is reportedly developing AI-powered mood tracking for Apple Watches. Marketplace’s Meghan McCarty Carino spoke with Daniel Kraft, a physician-scientist and founder of Digital.Health. He says wearable emotion recognition devices could achieve something that’s been difficult to provide in mental health care: real-time response.