This week's Question: Smartwatches allow users to track exercise, heart rate, and other health factors, but what about mood? The design studio Ustwo has a new app that aims for a more approachable model of delivering psychological therapy. The technology, called Moodnotes, acts as a basic journaling app. The user responds to Moodnotes prompts, such as "How are you?" and "What's happening at the moment?" The entries are archived and shown in a "Moodtrends" chart, which potentially reveals thinking patterns. If a thought pattern is determined to be affecting a user’s mood, the technology encourages the person to rethink a situation. What do you think? Can an app improve your mood?