Wearable Bio-Sensors (WBS) will permit continuous cardiovascular (CV) monitoring in a number of novels settings. WBS could play an important role in the wireless surveillance of people during hazardous operations (military, firefighting, etc) or such sensors could be dispensed during a mass civilian casualty occurrence. They typically rely on wireless, miniature sensors enclosed in ring or a shirt. They take advantage of handheld units to temporarily store physiological data and then periodically upload that data to a database server via wireless LAN or a Cradle that allow internet connection and used for clinical diagnosis.