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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>   

Such data has ended up in the hands of employers to squeeze the most out of their employees, as well as mortgage lenders, and insurers to adjust rates.<ref>https://www.scinapse.io/papers/2922744985</ref> It was even used to support discrimination and as evidence in court.<ref>https://www.forbes.com/sites/thomasbrewster/2018/01/29/strava-fitness-data-location-privacy-scare/</ref><ref>https://mashable.com/article/period-apps-roe-v-wade</ref>   

Such data has ended up in the hands of employers to squeeze the most out of their employees, as well as mortgage lenders, and insurers to adjust rates.<ref>https://www.tandfonline.com/doi/full/10.1080/03085147.2019.1570707</ref> It was even used to support discrimination and as evidence in court.<ref>https://www.forbes.com/sites/thomasbrewster/2018/01/29/strava-fitness-data-location-privacy-scare/</ref><ref>https://mashable.com/article/period-apps-roe-v-wade</ref>   

Self tracker has some options for defense. Data protection regulations grow.<ref>https://en.wikipedia.org/wiki/General_Data_Protection_Regulation</ref> Government classified [[Commercial, Medical Device, or Open Source|Medical Devices]] make medical data and that data is under more protection than basic commercial device data. Data can be anonymized, though often its not hard to deanonymize it. User should choose companies with terms of service that require opting into user tracking programs. [[Commercial, Medical Device, or Open Source|Open source]] apps, and some commercial ones, are under your complete control and will not mind if the device it runs on never connects to the internet. This wiki will note open source tools and tools with exceptional demand or lack there of for user data.

Self tracker has some options for defense. Data protection regulations grow.<ref>https://en.wikipedia.org/wiki/General_Data_Protection_Regulation</ref> Government classified [[Commercial, Medical Device, or Open Source|Medical Devices]] make medical data and that data is under more protection than basic commercial device data. Data can be anonymized, though often its not hard to deanonymize it. User should choose companies with terms of service that require opting into user tracking programs. [[Commercial, Medical Device, or Open Source|Open source]] apps, and some commercial ones, are under your complete control and will not mind if the device it runs on never connects to the internet. This wiki will note open source tools and tools with exceptional demand or lack there of for user data.