The sex hormones ostrogen, progesterone and testosterone belong to the steriod hormone group, which also includes dehydroepiandrosterone (DHEA), corticosteriods and aldosterone. According to JS Bland (1998), steriod hormones influence cellular physiology in many ways, acting as facilitators of gene expression in coordinating neuro-endocrine and metabolic systems, seperately and together, to achieve repair and rebalancing of physiology. Sex hormone imbalances are integral to many chronic illnesses (Neil S:2010)
Bland JS. (1998). Improving Genetic Expression in Preventing of the Diseases of Aging. Gig Harbour. WA: HealthComm International Inc, p8.
Neil, K. (2010). Sex Hormone Imbalance in: Nicolle, L and Woodriff Beirne, A. (2010). Biochemical Imbalances in Disease. London. Singing Dragon. 1st Ed. pg 226-227.