Keeping tabs on tweets may be an effective tool to help prepare for -- and prevent -- increases in asthma emergencies say researchers including one of Indian-origin. We live in the era of Big Data said study co-author Sudha Ram professor at The University of Arizona in the US referring to increasingly immense sets of information that lends itself well to analysis revealing patterns of human behaviour. Our research is innovative and unique because it harnesses the power of Big Data from social media and other sources to address the problem of anticipating emergency department visits for a chronic condition