As part of the DataSavesLives project, we asked Community Reporters in Salford and Wythenshawe to find out what senior citizens think about health data. In this video compilation, people share their experiences with collecting different types of health data. For example, by measuring their own blood pressure or by using an app to keep track of what they eat. Some do it to help their doctor make better decisions. Others want to control their diabetes or to motivate themselves to live healthier.