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For reasons not yet fully understood the moon has huge influence on the menstrual cycle.The moon circles the Earth every 28 1/2 days approximately and many fertile women mimic this periodicity between their cycles. Not all women follow this pattern but it has been shown that when women gather together for long periods of time, such as in prison, their menstrual cycles start to synchronise with one another.
The moon obviously causes the tides in the sea and the land is also raised by the moon's passage over it. Some people with mental problems are also be more agitated at periods of the full moon. This is why the old word for mental problem is lunacy. Animals too are probably more affected than we realise for example coral reefs synchronise their spawning at certain phases of the moon as do Horseshoe crabs in California.
I am by no means an expert but we ignore our evolutionary past at our own cost. We believe we are past all that but we are certainly not!
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The moon cycle operates as a calendar. Recording the shape of the moon during the menstruation period enable a female to calculate her fertility period, when the moon will be in the inverse position.
Such knowledge enable the female to select a dominant male to be the father of her offspring, even when having a monogamous relation with an inferior mate. Such a practice was observed in a colony of Blue Footed Boobies. The dominant male treated the females and the youngsters as his own. The group was enriched by stronger members relative to offspring of inferior males and relative to other groups who did not practice such behavior.
In order to gain this evolutionary advantage the calendar was to be accurate, and by natural selection the moon cycle became the basis of the menstruation cycle of 29.5 days, and the gene pool of a female with longer or shorter cycle perished.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agobecause it's your body's cycle. The new egg rolls down and attaches itself to the uterus lining on your vaginal wall. Then when your period comes it all collapses and the lining with the egg leave your body.
Wiki User
∙ 8y agoA menstrual period ranges from 21 to 31 days. On average, a cycle is 21 to 28 days from one period to the next. By 46 days, you have already missed one period and might have missed the second one.
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Does the earth obits once every 145 days?
it orbits the sun once every 365 days(a year) the moon orbits the earth every month(28-31days)
Mercury revolves once every?
about 87 earth days
What is the duration of one day on moon?
The moon rotates once on its axis once every 28 days.
Where in the world has the longest day and how long?
Alaska has the longest term of daylight in the U.S. for 82 days in A SUMMER.Only once did this happen, it DOES NOT happen every summer.Same thing for the winter time record for world's longest night in the U.S. set at 67 days.A lot huh?
Is the moon rotating faster than earth?
No. The moon rotates much slower than Earth. Earth completes a rotation once every days. The moon completes a rotation once every 27 days.
Why would my period be every 28 to 29 days then it changed last month and it was 45 days?
Because you are normal. It's common for the menstruation to skip or be delayed once in awhile.
Do you get your period everyday?
No, you don't get your period every day. You get your period roughly once per month, and menstruation lasts for around 5-7 days.
What time of the day is the egg released?
For human females, every 28 days. other animals on earth are different.
When do menstruation happen?
It starts between the ages of 10-16. Once you start it you will have it every month for about a week. It is okay if your body skips a month. Hope I helped!(: -13 yer old girl that started her period at 10.(:
When do you start getting a period?
Once Menarche has begun, then every 28 days approximately. Menarche will happen once you begin Puberty, anywhere from 9 to 15-years-old.
Does the earths orbits once every 145 days?
No. The Earth orbits the Sun once in 365.24 days
How often is an ovum released?
For women having a regular cycle, ovulation occurs for around 10 days or Day 11 to Day 21 of her cycle. The 14th day is mostly the day where the women ovulate, if she is having a 28-day cycle.
What would happen if the earth rotated on its axis once every 20 hours?
We wouldn't get enough sleep, because the days and nights would be shorter.
What would happen if earth rotated on its axis once every 20 hours?
We wouldn't get enough sleep, because the days and nights would be shorter.
When do you get your flow?
Once every 28 days
every once a week?
7 days
How often does hajj happen?
Once every year
