Blueberry is focused on improving well-being through bio-sensing and feedback. The company offers a miniature bio-sensor using functional near-infrared spectroscopy (fNIRS) to track mental workload and stress levels during activities. The Blueberry mobile app provides insights and suggestions for managing cognitive load and mental effort, helping users take breaks at optimal times. This technology, used in the military to enhance performance and safety, is designed to give individuals and businesses actionable data to understand and improve mental well-being, with a focus on privacy and user control.