Oscar De La Hoya... at 5 foot 10 and a half inches tall... is the first and only man to win 6 Different World Championships in 6 Different Weight Classes... breaking the record previously held by both Thomas Hearns and Sugar Ray Leonard. All of these World Championships range from Super Featherweight (130lbs.) right up until Middleweight (160 lbs.) Throughout all of this time... Oscar De La Hoya looks in great shape... but how do boxers do that? When they gain or lose the weight... is is weight gained through some sort of special muscle training? Or do they just eat good that puts on a little bit of fat? I'd really like to know how it's done!