Do minor exercises to keep up circulation. Clap hands and move arms and legs occasionally. Try not to stay in one position for too long. If more than one person is in the car, take turns sleeping and huddle together. Use newspapers, maps, and even the removable car mats for added insulation.
Cold weather puts an added strain on the heart.
Unaccustomed exercise such as shoveling snow or a car can bring on a heart attack or make other medical conditions worse. Be aware of symptoms of dehydration. Reviewed by Jack W. Donovan, Extension educator. For more information on emergency preparedness, contact your county Extension office . Cooperative Extension and other agencies of the U.S.D.A. provide equal opportunities in programs and employment.