The Health eHeart study is a modern cardiovascular clinical research outcome study designed to build on the classic Framingham study.
I am a Health eHeart research study participant and recently downloaded a new smartphone data collection app designed for participants.
This app is a clinical research tool that increases interaction with study participants by use of text messages and phone contact. Additionally, it provides a platform for collecting survey data and GPS behavioral data. For example, the study information notes that if your phone localizes GPS coordinates of a hospital, you may be queried about whether you have been hospitalized.