Researchers at Johns Hopkins track the flu via Twitter. How amazing is that? There is enough information being shared on Twitter that you can quantify it and then apply it to health studies.
People talk about everything on Twitter. How much someone talks about how much food they are eating could give you and idea of their dietary choices. This research could also pinpoint eating disorders or may find out more on how someone deals with an allergic reaction to something they never ate before. Take a listen to the below video and see how many other things researchers can find out about our health.