The document describes a study that tested using SMS messages to encourage participants to practice 10 deep breaths per day. A total of 11 people participated in the study. Various behavioral science principles were used in the messages, including liking, reciprocity, commitment, social proof and goal setting. The results found that 7 of the participants completed 10 breaths on most days. While some were creative in "finding smiles", the study was unsure if the :) emoji directly led to more breaths. Overall, testimonials from participants seemed to indicate the practice brought feelings of calmness and gratitude.