title: The relationship between exercise and the healthy heart: trouble in paradise?
authors.forename: Jostein
authors.initials: J
authors.lastname: Grimsmo
authors.forename: Harald
authors.initials: H
authors.lastname: Arnesen
mesh_terms: D000367:Age Factors; D000368:Aged; D056352:Athletes; D001281:Atrial Fibrillation / Q000209:etiology*; D015444:Exercise; D006801:Humans; D008297:Male; D008875:Middle Aged; D010807:Physical Endurance; D012307:Risk Factors