Never the less, self trackers can make more data available.<ref>https://www.mobihealthnews.com/news/most-health-apps-have-ability-collect-and-share-patient-data-study-finds</ref> In particular, many devices measure stress and [[Mood]] through [[Tools for heart rate or pulse|heart rate]] and [[Galvanic skin response]], kind of like a polygraph.<ref>https://en.wikipedia.org/wiki/Polygraph</ref><ref>https://www.wareable.com/wearable-tech/wearables-that-track-emotion-7278</ref><ref>https://www.heartmath.com/tech/</ref> | Never the less, self trackers can make more data available.<ref>https://www.mobihealthnews.com/news/most-health-apps-have-ability-collect-and-share-patient-data-study-finds</ref> In particular, many devices measure stress and [[Mood]] through [[Tools for heart rate or pulse|heart rate]] and [[Galvanic skin response]], kind of like a polygraph.<ref>https://en.wikipedia.org/wiki/Polygraph</ref><ref>https://www.wareable.com/wearable-tech/wearables-that-track-emotion-7278</ref><ref>https://www.heartmath.com/tech/</ref> |