System, device, method and computer program for providing a health advice to a subject

A device for providing a health advice to a subject, the device comprising:

• a health advice providing unit that is configured to provide a health advice based on a physiological observable of the subject at a first time and on a rate of change of the physiological observable of the subject over time;
• and
• a degree of urgency providing unit that is configured to provide a degree of urgency corresponding to the health advice based on the health level of the subject at the first time and on a rate of change of the physiological observable of the subject over time;
• and
• a user interface that is configured to provide the health advice to the subject, wherein the user interface is configured to vary an appearance of the health advice depending on the degree of urgency.

A method for providing a health advice to a subject, the method comprising the steps of:

• determining a health level of the subject for a first time, wherein the health level is based on a comparison of a physiological observable of the subject at the first time to a target physiological observable of the subject;
• providing a health advice based on the physiological observable of the subject at the first time and on a rate of change of the physiological observable of the subject over time;
• and
• assigning a degree of urgency to the health advice based on the health level of the subject at the first time and on a rate of change of the physiological observable of the subject over time.