Ahmed bin Saeed Al Maktoum. Ahmed bin Saeed Al Maktoum (Arabic: Ø£Ø­ÙØ¯ Ø¨Ù Ø³Ø¹ÙØ¯ Ø¢Ù ÙÙØªÙÙââ), born 1 December 1958, is president of the Dubai Civil Aviation Authority, CEO and chairman of the Emirates Group and chairman of Dubai World. Contents.
A cycle is counted from the first day of 1 period to the first day of the next period. The average menstrual cycle is 28 days long. Cycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens.The rise and fall of levels of hormones during the month control the menstrual cycle.omen usually have periods until menopause. Menopause occurs between the ages of 45 and 55, usually around age 50. Menopause means that a woman is no longer ovulating (producing eggs) or having periods and can no longer get pregnant.
During the menstrual phase, pregnancy occurs when an ovulated egg is fertilized by a sperm and implants itself in the lining of the uterus (the endometrium). Progesterone and estrogen levels drop if pregnancy does not occur, causing the uterus to shed its unused lining and expel it along with blood (menstruation).ou might picture it as a kind of solid wall, but the endometrium is actually a layer of tissue consisting of cells, capillaries, and glands that produce secretions. When menstruation begins, the functional surface layer of the endometrium breaks down and peels off. This is what causes bleeding during a period.