title: Ask the doctor.  I have been having frequent foot and calf cramps at night that are quite painful.  They come on when I first get into bed.  What causes them?  Can I do anything to prevent them?
authors.forename: Anne
authors.initials: A
authors.lastname: Fabiny
mesh_terms: D004032:Diet; D060766:Drinking Water; D015444:Exercise; D015438:Health Behavior; D006801:Humans; D020922:Sleep-Wake Transition Disorders / Q000517:prevention & control*
chemical_list: D060766:Drinking Water