title: On call.  I do my best to exercise every day, either walking two miles in good weather or riding my exercise bike for 30 minutes on wet or cold days.  Should I keep going when I catch a cold, or would I be better off resting?
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D001642:Bicycling; D003080:Cold Temperature; D003139:Common Cold / Q000503:physiopathology / Q000517:prevention & control*; D015444:Exercise; D006801:Humans; D016138:Walking; D014887:Weather