New twist of social media as study reveals twitter can help identify communities at risk of stress and heart disease

Australian researchers have discovered how social media can serve as an indicator of a community's psychological wellbeing and can predict rates of heart disease.

The study, conducted by researchers from the University of Melbourne and University of Pennsylvania in the U.S., showed that Twitter not only predicts heart disease risk as well as many other traditional methods, but it also acts as a psychological barometer.