We are developing a preventive healthcare platform with the help of AI/ML, IoT and Blockchain using multiple inputs i.e., speech, facial features, activity, electronic health data and historical records. We are building multiple algorithms: * Machine learning/deep learning algorithms for acoustic features of multilingual speech signals. Machine learning/deep learning algorithms for facial features. * Hybrid fusion algorithms on speech, video, and other well-known biosensors and social media. * IoT based smart medication adherence * Gamification-based techniques for improved patient engagement * Blockchain enabled data sharing