1. A method for monitoring the health status of a human, comprising the steps of: obtaining an observation of multiple vital signs from the human; providing a kernel-based model characteristic of the behavior of at least some of said multiple vital signs under known health conditions; generating an estimate with said kernel-based model of at least one of said multiple vital signs, based on said observation; comparing said estimate to the corresponding measured value of the at least one of said multiple vital signs in said observation; and making a determination of the health status of the human from said comparison.