This timely article in USA Today offers some sound advice for snow shovelers with cardiac risk factors (age being prominent among them). In addition to their sound advice: be aware of symptoms (chest pain, palpitations), layer up to stay warm,  avoid strenuous exertion if one has or suspects coronary artery disease, push rather than lift snow as able, one can also pace oneself: go slow and take breaks.  The combination of cold and wind plus heavy exertion creates a setting f