@Article{ authors = " Alicja Rzepka, Krzysztof Radziszewski, Kornelia Kędziora–Kornatowska, Maciej Dzierżanowski", title = "Physical activity as a remedy for "cheerful" aging which prevents from chronic diseases", journal = "Journal of Education, Health and Sport", issue = "2016 / Tom 6 / Numer 13", pages = "183 - 199" }