A device lets people know your mood. It is a wristband called Moodbeam. A company and a healthcare provider designed it. The company wanted to help hospital workers. The healthcare provider wanted its staff to monitor their mood. Wearers can check their mood by logging in to their account. Their information is stored in the cloud. Employers can see the data stored in the cloud. They can find out how workers are feeling at work.

A worried mother thought of the idea. She wanted to know how her daughter was feeling. The company website says: "Moods are hard to capture, tough to talk about and often invisible." It wants to change the way the world sees mood, "by making it easier to…talk about how we feel". It gives us a better understanding of how we feel. We can have more meaningful conversations with those we care about. We can also lead happier lives.