The administration of antiestrogens to men suffering a relative androgen deficiency stimulates the body's production of testosterone leading to a correction of the deficiency. For example, male menopause, loss of cognitive function, insulin resistance, type 2 diabetes, obesity, excessive weight, Alzheimer's disease, and combinations thereof, can all be characterized by significant decreases in serum levels of bioavailable androgens. Administration of antiestrogens to men restores optimum serum levels of bioavailable androgens, and, thus, serves as a treatment for these disorders and relative androgen deficiency in general.