Participants installed an app on their phones to automatically record the total number of minutes in each hour the screen was turned on (total screen time) during a 30-day period. Of the total Health eHeart enrollees, 653 people chose to participate in and complete the new smartphone-sleep study. For the new smartphone study, Marcus dipped into this wealth of information to conduct his own “sub-study.” Marcus and his co-founders also make the data available to other scientists conducting unrelated studies. “We’ve had people from every state in the US, lots of people from every state, and we actually have people from 50 countries.” The information is gathered, analyzed and used to research and develop strategies to prevent and treat all aspects of heart disease.Ībout 80,000 participants have enrolled in Health eHeart, Marcus said. Mark Pletcher and Jeffrey Olgin, professors at UCSF.Īfter signing a consent form, enrolled participants self-report their health data via a series of online questionnaires. Anyone 18 years of age or older can enroll in Health eHeart, co-founded by Drs. “Health eHeart,” which was funded by the National Institutes of Health and endorsed by the American Heart Association, is designed to study cardiovascular health. To answer this question, he used existing information collected by an Internet-based study he started in March 2013. Knowing that smartphone use has increased in tandem with sleep deprivation rates, Marcus and his colleagues decided to investigate whether the two might be related. Cell phones and screens are keeping your kid awake
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