Systems and methods of passive and active alert system for individuals to detect traumatic events using physiological and environmental factors. Exemplary methods include receiving sensor data associated with the individual from a plurality of sensors of a monitoring device and determining whether the sensor data satisfies one or more trigger conditions. For each of the trigger conditions satisfied, one or more messages are sent to at least one of the patient monitoring device and/or an external computing device for analysis. Satisfaction of one or more of the trigger conditions may indicate the individual has been incapacitated and is in need of assistance. The sensor data may have been collected from a heart rate sensor and/or an accelerometer. In some embodiments, the trigger conditions are defined by the individual.
