Apparatus for detecting, receiving, deriving and displaying human physiological and contextual information

An apparatus for tracking caloric consumption and caloric expenditure of an individual, comprising:

• at least two sensors adapted to be worn on an individual's body during a plurality of activities including non-resting activities, said sensors in electronic communication with a processor, at least one of said sensors being a physiological sensor, said sensors adapted to generate data of at least one of a first parameter of said individual and a second parameter of said individual during said plurality of non-resting activities, said first and second parameters being produced by at least one of said individual's body and the environment adjacent to said individual's body, said first parameter being physiological, said processor being programmed to generate caloric expenditure data of said individual using said data of a first parameter and a second parameter, said caloric expenditure data including active caloric expenditure data;
• an I/O device in electronic communication with said processor, said I/O device receiving said caloric expenditure data from said processor, said I/O device including means for enabling said individual to enter information relating to calories consumed by said individual, said infonnation relating to calories consumed being used to generate caloric consumption data, and said I/O device comprising a displaying means for displaying information based on said caloric expenditure data and said caloric consumption data.