The gadget senses nervous movements and at this point the electromagnet inside the pen makes it difficult to move, which encourages the user to slow the movements. The idea is based on a notion that people start playing with their pen when they feel stressed. The effect of the electromagnets stops when a person discontinues playing with the pen.
The findings of the experiments showed that people, who received feedback using this pen, had a five percent lower heart rate, if compared to those, who did not use the stress-reducing pen. Thus, the pen can be used to alleviate short-term stress and interfere to change the person's behavior in a constructive way.