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When experiencing menarche, the blood flow (colloquially described as having one's "period") can vary from a slow and spotty discharge to a consistent blood flow for 3–7 days. The color of the blood ranges from bright red to brown in color; this is normal. Periods may be light or heavy. [15]
The first period, a point in time known as menarche, usually begins between the ages of 11 and 13. [1] Menstruation starting as young as 8 years would still be considered normal. [2] The average age of the first period is generally later in the developing world, and earlier in the developed world. [3]
In most of India, menarche is celebrated as a positive aspect of a girl's life. For example, in Andhra Pradesh, girls who experience their menstrual period for the first time are given presents and celebrations to mark the occasion. [69] In South Indian tradition, the first period is celebrated as a rite of passage in the Ritu Kala Samskaram.
The origin appears to be in connection mainly with the following Bible verses referring to the period translated, "time".. And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time.
The average age of a girl's first period is 12 to 13 (12.5 years in the United States, [6] 12.72 in Canada, [7] 12.9 in the UK [8]) but, in postmenarchal girls, about 80% of the cycles are anovulatory in the first year after menarche, which declines to 50% in the third year, and to 10% by the sixth. [9]
The period between Abraham's call to enter Canaan (AM 2021) and Jacob's entry into Biblical Egypt is 215 years, calculated from the ages of Abraham, Isaac, and Jacob; the period in Egypt is stated in the Book of Exodus (12:40) as 430 years, although the Septuagint and the Samaritan Pentateuch texts both give only 430 years between Abraham and ...
Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...
Old Earth creationism Yom has various meanings depending on its context. Gap creationism Yom is 24 hours, but there is a gap of time between Genesis 1:1 and 1:2, before the six consecutive days of creation. Day-age creationism Yom is time span. Progressive creationism Yom is time span, but there are gaps of time.