User's physiological context measurement method and apparatus

An apparatus, comprising:

• a head-fitting component to be mounted at least partly around a user's head;
• at least one sensor disposed on the head-fitting component to generate a signal indicative of a user's physiological context in response to contact with the user's head, wherein the physiological context comprises a respiration cycle and a temperature of the user, wherein the sensor comprises a piezoelectric diaphragm coupled with a metal component, with first and second electrical contacts respectively coupled with the diaphragm and the metal component, wherein the second electrical contact comprises a thermocouple, wherein the diaphragm is to sense vibration in a portion of the user's head produced in response to the respiration cycle, and the thermocouple is to sense a temperature of the user;
• and
• a controller coupled with the at least one sensor, to process the signal and generate data indicative of the physiological context of the user.