It has been suggested that differences in penis size between individuals are caused not only by genetics , but also by environmental factors such as culture , diet and chemical or pollution exposure. A sample that is not representative of the population to which generalizations are to be made. Schonfeld published a penis growth curve in Androgens like testosterone are responsible for penis enlargement and elongation during puberty. A study conducted at the Australian National University , published in early , showed that penis size influences a man's sex appeal, and the taller the man, the bigger the effect. Ancient Greek kouros sculpture from Anavyssos dating to c.
Human penis size
Androgens like testosterone are responsible for penis enlargement and elongation during puberty.
World Penis Data… Again
The evolutionary reasons for the increased thickness have not been established. Environmental Health Perspectives. London, England: Thames and Hudson. Berlin and Heidelberg, Germany: Springer-Verlag.