A team of scientists took flacid and erect penile length measurements and determined that 26% of males fit the definition of grower, while 76% of males are a shower. They also found that younger age and single status could be predictors of being a grower.

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A team of scientists took flacid and erect penile length measurements and determined that 26% of males fit the definition of grower, while 76% of males are a shower. They also found that younger age and single status could be predictors of being a grower.