Various methods and apparatuses for measuring a state parameter of an individual using signals based on one or more sensors are disclosed. In one embodiment, a first set of signals is used in a first function to determine how a second set of signals is used in one or more second functions to predict...http://www.google.ca/patents/US20080167536?utm_source=gb-gplus-sharePatent US20080167536 - METHOD AND APPARATUS FOR AUTO JOURNALING OF BODY STATES AND PROVIDING DERIVED PHYSIOLOGICAL STATES UTILIZING PHYSIOLOGICAL AND/OR CONTEXTUAL PARAMETER