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.
When does menstruation start and stop? A girl may experience her first period between the ages of 9 to 14. The exact age at which this happens is variable and differs from one person to another. A sexually mature girl menstruates once in every 29 to 31 days. During pregnancy the uterine lining is utilized to nourish the baby in the uterus and hence menstruation does not happen.