The social alarm system includes a fall detector unit, worn by the user, having an accelerometer to detect a fall. A controller monitors for an acceleration signal which exceeds a wake-up or starting threshold and, in response, distinguishes between a fall event and a non-fall event based at least on the acceleration signal. A counter unit maintains a count of the non-fall events over a monitored time period such as one day. An alarm signal unit generates an inactivity alarm signal when the count of non-fall events is below a count threshold within the monitored time period.
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