Download or read book Testosterone Research Trends written by L. I. Ardis and published by Nova Publishers. This book was released on 2007 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Testosterone is a steroid hormone from the androgen group. Testosterone is primarily secreted in the testes of males and the ovaries of females although small amounts are secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid. In both males and females, it plays key roles in health and well-being. Examples include enhanced libido, energy, immune function, and protection against osteoporosis. On average, the adult male body produces about twenty times the amount of testosterone that an adult female's body does. This book presents new and important research in this field from around the world.