Around the world, thousands of women use the Hormone Replacement Therapy (HRT) to relieve menopausal symptoms such as hot flashes, genitourinary changes, sexual dysfunction, mood disorders, bone loss, and metabolic changes. 1 However, the use of HRT in chronic non-communicable diseases remains controversial. 2 That means, HRT does not always ameliorate these symptoms in menopausal women because the pathophysiological basis are complex and the root of disease is not only due to hypoestrogenemia. 3 Clinical evidence for the use of HRT is generally related to people living at sea level, but not in the highlands. Under chronic hypoxia, reproductive age females show lower serum levels of estradiol, progesterone, and prolactin than those living at sea level. 4 These decreasing female sex hormones are usually associated with late menarche and early menopause. 5 Research is often focused on the