Hormone replacement is an integral part of my medical practice. Successful Healthy aging entails much more than hormone replacement but few things have an immediate and profound effect on the quality of life as restoring hormones to optimal levels. Within a few weeks of beginning hormone replacement, patients typically experience a new level of energy, physical vitality, improved mental function, increased resistance to disease and a more youthful skin and physique. Although hormone production begins to taper off during our 20's we don't fully fell the effects until we reach our 40's or 50's. Then as we reach menopause for women and andropause for men this decline in hormone production goes further. Both menopause and andropause contribute to the progression of aging. The goal of hormone administration is to achieve optimal levels but never to achieve unnaturally high levels of any hormone. We will discuss differences between bio-identical and conventional hormone therapy.