Smart Pen Detects, Helps to Reduce Stress (Psych Central).
Move over smart phones, a new device — a pen — is said to measure if an individual is stressed-out and provide individual biofeedback for assisting self-regulation. Researcher and designer Miguel Bruns Alonso has developed a pen which can measure the stress levels of the person using it, and can actually help to reduce that stress. In experiments, the heart rate of people who used the anti-stress pen fell by an average of five percent.