Monitoring systems for noninvasively monitoring physiological parameters of a subject, including (i) a wearable monitoring garment adapted to cover at least a portion of a subject's torso, and (ii) a magnetometer system that is embedded in the monitoring garment, the magnetometer system including at least paired first transmission and receiver magnetometers and paired second transmission and receiver magnetometers, the magnetometer system being responsive to changes in distance between the paired magnetometers.