Improving people's health with wearable technologies – that's the goal of mHealth. We are visiting the University of Kaiserslautern and the wearHEALTH workgroup, which develops these types of mobile health services with funding from the Federal Ministry of Education and Research (BMBF). Here, we get to try the game jumpBALL that has been developed by wearHEALTH to support thrombosis prophylaxis.