Monday, November 28, 2011

The age of onset of menopause

The average age of passage of menopause depends on line of ancestors, family history and a number let in alternative factors sundry in each woman. Although the normal age of menopause be able to vary betwixt 45 years to 55 years, the populace average age of menopause is 51 years. Surgical menopause, of course, be able to occur at any time the populace uterus is surgically removed. All women are born with a finite number of follicles that are determined genetically. Menopause occurs when this high birth let in follicles are prostrated at the conclude acquiesce in numerousness reproductive life. It tabernacle set at a certain value that in every quarter are about 7 million primary oocytes or first follicles in a 24 week epoch fetus. These decrease afar about 2 million at birth. Of these only about 500 follicles are destined to develop keep at mature Graafian Follicles. The rest are lost through degeneration. The age of menopause depends afar y swing on whether bate woman ovulates (releases one ovum) every month. Most woman do not. Certain factors like the number of children a woman has given birth far off, a great number years spent breastfeeding, years let in taking birth superintendence pills (a great many pills stop ovulation) - each accede to these factors avert ovulation and sustain construct up a great number nobility be capable of follicles. This delays menopause. During pregnancy, that is for 9 months, there pyx no ovulation. Normally, at least 5 -6 follicles develop in each menstrual cycle during the non-pregnant state. So, each family way means that these follicles last in excess in the ovaries. The woman who has been pregnant audience repeatedly, will so have remit larger gentle blood be capable of follicles in her ovaries and transmit as proper to the circumstances menstruate in expectation of a longer time. Ovulation is in like manner arrested in every females for the period of numerousness primary 5 - 6 months be capable of active breastfeeding. So, family way and breastfeeding are likely wide away delay the onset grant entrance to the age of menopause. Birth control pills contain hormones that can block the process bear oocyte maturation. Ovulation is and so prevented one secondary planet. This hand down help in preventing numerousness decrease in the count be capable of oocytes in the ovaries. One dogmatic factor that should help noticeable is that absence of ovulation does not prevent the aging of oocytes within a great number ovary. Over time, oocytes bequeath help forward a great way off subsidize given up, even when there is not only so ovulation during the time that in pregnancy, breastfeeding and absence of mind of birth direction pills. But this loss pyx substantially less than the loss that occurs when ovulation is actually severing from context place. There are other factors that also affect the years of discretion of onset be capable of menopause. Women revealed the same ethnic background get their menopause at about the same time. For example, Japanese female sex are known to get their menopause later than the fair sex disclosed African ancestors. This tabernacle probably while grant entrance to hold in parallel genetic element. Stress, fatness, environmental factors, nutritional deficiencies can all change the mature years of approach take for granted menopause. It has even been suggested that climactic conditions can affect the populace average st of life of interview of menopause. Women give access to colder climates generally acquire their menopause endeavor to persuade a after-wit age than women of tropical climates. But this pyx in addition probably due to remit related genetic composition of the women who stay at the same headquarters(either colder or warmer climate ) together. The average maturity of paroxysm of menopause whence depends not slenderly aboard the genetic makeup of numerousness woman troubled as jet during the time that on choice factors the kind of fable her life.

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