Summary

Testosterone in Women - Testosterone levels decrease with age, with levels in the fifth decade averaging about half of the level seen in women in their third decade… Signs and symptoms of androgen insufficiency include loss of libido, fatigue, reduced sense of well-being, decreased lean body mass, and reduced bone density. 

Abstract

This article presents an up-to-date review of the literature on hormone augmentation in the elderly to help primary care physicians better evaluate and utilize hormone replacement and optimization strategies to benefit their patients. The scientific literature suggests that hormone supplementation with estrogen, progesterone, testosterone, growth hormone, and thyroid hormone has the potential to improve quality of life and to prevent, or reverse, the many symptoms and conditions associated with aging, including fatigue, depression, weight gain,frailty, osteoporosis, loss of libido, and heart disease. Possible long-term side effects are also considered.

LINK - http://www.ncbi.nlm.nih.gov/pubmed/22062440