1. A networked health-monitoring system, comprising: (a) a plurality of remote user sites, each remote user site including at least one of each of (i) a display; (ii) a data management unit; and (iii) a memory; all arranged together to facilitate collection of user health monitoring data; (b) at least one remote computing facility including at least one central server configured (i) for two-way communication with and (ii) to receive health monitoring data-related signals from the plurality of remote user sites; and (c) at least one computer for use by a health care professional, remotely located from and configured for signal communication with the central server, wherein the health-monitoring system is configured to communicate signals based on collected user health related data using at least one RF transmission.