In addition, poisonous chemicals, or other harmful substances can cause foodborne diseases if they are present in food. 1  More than 250 different foodborne diseases have been described. 2  Most of these diseases are infections, caused by a variety of bacteria, viruses, and parasites that can be foodborne.
Testosterone is an androgen and belongs in the lipid family. Testosterone is the primary male sex hormone, similar to how estrogen is the primary sex hormone in females. In females, testosterone is important to metabolic function. Women generally have about fifteen-to-twenty fold lower concentrations of testosterone than men do.
Testosterone Replacement Therapy. Testosterone is a major sex hormone produced in the testes of men. The pituitary gland is responsible for controlling the production of testosterone hormone. In the testes, luteinizing hormone binds to receptors on Leydig cells; this stimulates production and secretion of testosterone. Testosterone helps to develop the primary and secondary sexual characteristics in males.