Patent ID: 8159353

Claim:
A portable electronic device comprising: an active time unit for determining an activity level associated with a user of the portable electronic device during a predetermined period of time; and a processing unit for determining an inactivity level associated with the user of the portable electronic device during a predetermined period of time on the basis of the determined activity level, the processing unit detecting at least one of an optimal inactivity level and a maximum inactivity level, the optimal inactivity level comprising an optimal level of inactivity that is not advisable to be exceeded, the maximum inactivity level comprising a maximum level of inactivity an exceeding of which is to be avoided, the processing unit notifying the user of the portable electronic device in response to detecting at least one of the optimal inactivity level and the maximum inactivity level, thereby increasing the user's awareness of the user's inactivity level and increasing the user's ability to maintain a more active lifestyle.