Jens Voigt Facts

Jens Voigt has four heart rate training zones: anger, rage, fury and breakaway. #FAREWELLJENS @JensVoigtFacts on Twitter — submit your own fact — press contact Follow @JensVoigtFacts Another fact: more than 40,000 children are born in the U.S. every year with congenital heart defects. You can help.

[naotoj]

おもろい。