L’activité sportive réduit de moitié le déclin de nos aptitudes physiques et renforce les muscles, les os et le cœur. http://www.retouralinnocence.com/2012/07/3-conseils-pour-rester-jeune-et-preserver-sa-sante-physique-2/ Image via franksthename.tumblr.com
No seriously I've thought about something similar to this... Like, just imagine that Teddy Lupin is adopted by Molly Weasley. And when he gets old enough to find out about Fred, he looks through all the scrapbooks Molly obviously has and studies his mannerisms (moving pictures, of course) and one day he decides to become him. And Molly walks in and just falls apart. And he's just completely perfect at being Fred that sometimes she forgets.