A system for monitoring and responding to a cerebrovascular accident includes a computer, including a computer processor and a computer transceiver, a storage that stores personal medical information and a risk level, and a portable device attached to a user. When the computer transceiver receives personal medical information of the user, the computer processor calculates the risk level of a cerebrovascular accident based on the personal medical information. When the computer transceiver receives acceleration information, the computer processor determines whether to contact a predetermined contact based on the risk level and the personal medical information. The portable device includes an acceleration sensor, a position receiver, a clock, a portable transceiver, and a portable processor.