A system for determining a life threatening condition of a human may include at least one mobility sensor couplable to a human body and configured to measure mobility parameters of said human body at least one physiological sensor couplable to a human body and configured to measure physiological parameters of said human body at least one environmental sensor configured to measure environmental parameters indicative of an environment of said human body and a computer processor configured to apply a decision function configured to determine a predefined life endangering condition of said human body, based on said measured mobility, physiological, and environmental parameters, and statistical relationship therebetween.