Mikael Rydén, Karolinska Institutet, is researching fat cells and wants to find out who is at risk of getting sick from their fat. Diabetes, fatty liver disease, stroke, some lung diseases, but also certain forms of cancers are some examples. Rydén's group has shown that the white fat is much more varied than previously thought, that there are three subgroups of fat cells, and they have different characteristics. This may provide to further tools for precision medicine. Providing the right treatment to the right patient. Maybe will we also be able to adapt training and diet to the different cell types.