Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is a strange animated gif of some sort of infomercial / commercial where a guy is struggling with an exercise machine in the background while the words "Scientifically Proven" flash up on the screen. This is often used in jest.