The invention relates to an apparatus for regulating the concentration of glucose in the blood of a person, said apparatus comprising: - at least one glucose sensor that is arranged to measure the glucose concentration of the person, for example in the interstitial fluid or blood； - a pump means for selectively introducing at least one substance influencing the blood glucose levels into the body of the person, for instance by means of at least one cannula or catheter to be inserted into the body of said person, and - a control means for controlling said at least one substance influencing the blood glucose levels to be introduced to the person based on data received from said glucose sensor, wherein said apparatus comprises at least one further sensor that is arranged to monitor a further characteristic of the person. The at least one further sensor may comprise an accelerometer, a heart rate sensor, a temperature sensor, a pH sensor, a ketone sensor, a GPS receiver and/or a skin resistance sensor.
