A sensor for measuring a respiration of a user, wherein the sensor comprises a capacitor comprising of a first capacitor plate and a second capacitor plate, the capacitor plates being coupled to a skin of the user such that a movement of the skin during the respiration changes a relative arrangement of the first capacitor plate with respect to the second capacitor plate to vary the capacitance of the capacitor and a means to generate an output signal dependent on the capacitance is disclosed. The change in the relative arrangement of first capacitor plate and the second capacitor plate is a change in a distance between the first capacitor plate and the second capacitor plate.
