Leveraging the worldwide proliferation of smartphones, University of California-San Francisco researchers have launched an online cardiovascular study to develop new ways to predict and prevent heart disease, with the goal of enrolling one million people globally. The study uses smartphone technology to measure a participant's heart rate, blood pressure and pulse rate. The UCSF team is working with mobile app developers to collect the information by allowing participants to submit data via a secure online survey. This information is then sent back to researchers, who can make recommendations to help prevent or treat heart disease. The apps and certain study-related devices are free to participants. Announcement