Karsten Warholm: World Record holder tagged the 'craziest' track athlete after training in -21 Celsius weather

Track star Karsten Warholm of Norway accomplished an incredible feat by practicing in record-breaking freezing temperatures. Karsten Warholm, the world record holder in the 400-meter hurdles, did the craziest thing an athlete has ever done after practicing in -21 degree Celsius without a shirt.The Norwegian Viking posted a video of himself jogging on ice in bitterly cold conditions online.Fans and sportsmen are in awe of how much work he puts in and the lengths he goes to in order to be among the best in the world.In his native country, Warholm is revered as a track legend and rockstar due to the numerous first-time accomplishments and multiple international medals he has won during his brief career.