1. A method for providing a physiological event marker, the method comprising: receiving a physiological signal; monitoring using electronic processing equipment at least one value derived from the physiological signal, wherein the at least one value comprises a combination of pulse rate, pulse wave area, pulse statistical moment, and/or DC offset; determining using the electronic processing equipment that a physiological event has occurred based at least in part on the at least one value and based at least in part on at least one corresponding threshold; and storing the physiological event marker indicative of when the physiological event occurred.