This guy is named Adam, from Britain, and he's a junior 400-meter runner who also loves to show off his body on his YouTube videos. And he knows who his audience is since he addresses this one by saying, "Hi guys, gonna do some flexing for ya." Be our guest.

This guy is named Adam, from Britain, and he's a junior 400-meter runner who also loves to show off his body on his YouTube videos. And he knows who his audience is since he addresses this one by saying, "Hi guys, gonna do some flexing for ya." Be our guest.

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