This document describes the assessment of human physiological systems in a manner that can be applied throughout the
population. Various noninvasive sensors (including wearable, passive contact and noncontact sensors) may be integrated into the furniture of a person's home (including a mat, a
toilet-seat, a mirror and a
bathtub). They can be used to detect vitals and other parameters and combined with mathematical models to assess the functional state of physiological systems. For example, the health of the cardiovascular
system is ultimately determined by organ blood
perfusion and molecular
gas exchange. In lieu of measuring these functional
metrics directly, noninvasive sensors are used to monitor
cardiac pressures and volumes, along with pressure transit through the vascular to quantify
cardiovascular health, presenting little if any risk to the person and are simple and easy to use. In particular, cardiac pressure-volume loops are determined at different points in time and a health trend for the physiological
system is determined based thereon.