In the past we used to believe that our hormone levels fell as a result of age. Current thought says that we age because our hormone levels fall. From about 30 years of age, hormone levels begin to fall between 1% and 3% each year; at age 50 they will have decreased by up to 20% or more.
Hormonal balance is one of the pillars to ensure optimal health. A decrease in hormone levels contributes to many of the symptoms associated with aging.
Bioidentical hormone replacement therapy is based on the use of supplemental doses of hormones that have a chemical structure identical to the hormones that the body produces naturally .
Melatonin is a hormone secreted by the pineal gland and is also present in other tissues, where probably has a local effect. The best known function of melatonin is the regulation of the biological cycles. It is one of the most important regulators of the activity of the suprachiasmatic nucleus. It is our biological clock.
Melatonin also appears to be involved in the circadian rythm , in the induction of sleep, in the regulation of body temperature and the immune system.
In humans, plasma melatonin levels begin to drop from 25-35 years. From 40-50 years these levels begin to alter our rhythms generating functional, behavioral and adaptation disorders, which are signs of aging. One reason that older individuals suffer increased oxidative damage is due to the reduction of melatonin production induced by age.
Growth hormone, androgen and estrogen hormones are also involved in the phenomenon of aging. Scientific research focus their studies to know their benefits and negative effects to promote their combined use in anti-aging therapies.