Tiny particulates or noxious gases: From the day they are born, all people are exposed to a range of environmental forces. These forces constitute the exposome and affect the health and wellbeing of people around the world. A European research project has been set up to explore how the exposome affects the course of lung diseases. The microelectronics specialists at Fraunhofer IZM are on board and have developed a unique sensor bracelet that can pick up even tiniest concentrations of more than 40 individual harmful substances. The collected clinical data will show how these affect the lives of patients and may feed into more targeted and customized treatments.