title: [Physical exercise is useful but it has not been proved to prevent heart infarct].
mesh_terms: D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000517:prevention & control*; D005082:Physical Exertion
vernacular_title: Motion kan vara nyttigt men har inte bevisats förebygga hjärtinfarkt.