Three time Indy 500 winner and Dancing With The Stars champion Helio Castroneves is a model of physical fitness. But he also says that while IndyCar stars are slim, NASCAR drivers can have a bit of a beer belly.Racing, though it might not look like it from the outside, is one hell of a physically demanding sport. Instead of outright strength, it takes high levels of endurance in order to compete at the top of your game for hours at a time with high G-Forces and in brutally high temperatures.
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