18.“Alzheimer\’s disease, cerebrovascular dysfunction and the benefits of exercise: from vessels to neurons.” Klinik Fur Psychiatrie und Psychotherapie, Abteilung Gerontopsychiatrie, Bergische Landstr. 2, Dusseldorf 40629, Germany. Exp Gerontol. 2008 Jun;43(6):499-504. Epub 2008 Apr 6. http://www.ncbi.nlm.nih.gov/pubmed/18474414
19.“Aerobic fitness reduces brain tissue loss in aging humans.” Beckman Institute, University of Illinois, Urbana 61801, USA. J Gerontol A Biol Sci Med Sci. 2003 Feb;58(2): 176-80. http://www.ncbi.nlm.nih.gov/pubmed/12586857
20.Trappe S, Hayes E, Galpin AJ, Kaminsky LA, Jemiolo B, Fink WJ, Trappe TA, Jansson A, Gustafsson T, Tesch PA. New Records In Aerobic Power Among Octogenarian Lifelong Endurance Athletes. J Appl Physiol. 2012 Oct 11. http://www.ncbi.nlm.nih.gov/pubmed/23065759