Penis Research and Penis Enlargement

TESTOSTERONE

Testosterone is the main male hormone, produced mostly in the testes. Testosterone stimulates the development of the male secondary sex characteristics at puberty, causing growth of the beard and pubic hair, development of the penis, and change of voice. The hormone also aids in the growth and muscular development of the adult male. If little or no testosterone production occurs before puberty, secondary sexual characteristics fail to develop.

RELATED WEBSITES ON TESTOSTERONE:

4-Men.Org: How To Increase Testosterone

Frequently Asked Questions

Testosterone and Erectile Dysfunction