Health monitoring system

A personal health monitor comprising:

• a portable, physiological monitoring device which periodically and automatically measures and records from a subject physiological data comprising voice sound data indicative of voice sounds made by the subject over a predetermined period of time, the recording of the voice sound data being such that sound duration and intensity are determinable from the data, but semantic content is not;
• a time base which tracks the time of recording of the physiological data;
• and
• a data storage unit in which the physiological data is stored with reference to the time base.

A method of monitoring audible sound data from a subject comprising:

• providing a portable voice sound recorder which is securable to the body of a subject and periodically and automatically records auditory data from the subject indicative of voice sounds made by the subject during predetermined time intervals, the recording of the voice sound data being such that sound duration and intensity are determinable from the data, but semantic content is not;
• a time base which tracks the time of recording of the voice sound data;
• and
• a data storage unit in which the voice sound data is stored with reference to the time base.