With age, our hormone levels naturally begin to decrease, a significant factor in the aging process. The human body does not function at an optimal level without adequate hormone balance. At some point, in the lives of both men and women, the endocrine glands fail to maintain adequate hormone levels, and the older we get, the more depleted our hormones become. It is at this point that replacing those hormones becomes desirable and leads to a happier, healthier life. The key to safe and effective hormone replacement therapy is to use bio-identical hormones and to administer them in as physiologic a manner as possible. The body cannot metabolize non bioidentical hormones in a normal manner; therefore, they persist in the body and exert an abnormal effect which can lead to medical problems.