Fall sensing and medical alert systems

A fall detecting device comprising:

• a housing configured to be positioned adjacent a wearer's body;
• a processor;
• a sensor system operatively connected to the processor and configured to detect a physiological condition of the wearer's body;
• a motion sensor operatively connected to the processor;
• a wireless communication module operatively connected to the processor;
• a memory operatively connected to the processor, the memory storing computer readable instructions that, when executed, cause the processor to:
• monitor the motion sensor to detect a decrease in acceleration in the gravitational direction below a first predetermined threshold;
• start a timer upon detecting the decrease in acceleration;
• monitor the motion sensor to determine whether the motion sensor signals a fall-indicative acceleration above a second predetermined level prior to the timer reaching a first predetermined time;
• monitor the motion sensor to determine whether the motion sensor signals a recovery-indicative acceleration above a third predetermined level prior to the timer reaching a second predetermined time;
• and
• activate the wireless communication module to initiate an emergency alert if the fall-indicative acceleration is detected and the recovery-indicative acceleration is not detected.