'I have the feeling that in spite of all the pain, unpleasantness and nastiness I have a sweet secret.' (Anne Frank, writing about menstruation in her diary)
Hi there. Menstruation is very interesting from an evolutionary perspective. I will be collecting latest research and reports, for now here are some ideas to explore:
Age of first period in tribal society compared to present day.
How many periods women had in tribal society compared to present day (i.e. in our evolutionary past women would menstruate, get pregnant, breastfeed. Therefore have many less periods.)
Studies show a relationship between high number of periods and breast cancer.
Studies show that girls begin to menstruate earlier if their father is not around.
The visibility of menstruation as opposed to hidden ovulation (sign of fertility).
Why do women menstruate if it is such an unnecessary waste of nutrients?
Menstruation ceases if environment is harsh.
Synchronicity of female cycle with other females.
Menstrual cycles of lesbians compared with heterosexual women.
Role of orgasm and seminal fluid.
This study observed an increased breast cancer risk in women with a higher number of cumulative menstrual cycles in their lifetime.
Several reproductive factors have been linked to increased risk of breast
cancer - from early menses and late menopause to childlessness and late
age at first pregnancy. A new study would add yet another: menstrual cycles
that are typically either shorter or longer than average.
The researchers suspect that hormones in general, and their peaks during an ovulatory cycle, collectively affect cancer risk.
Read More: Menstrual Cycles may affect Cancer Risk
The purpose of this study is to examine the relationship between diet, physical activity and when a woman has her first menstrual period (menarche). The exact cause (or causes) of breast cancer remains unknown; however, certain aspects of a woman's life appear to increase her chances that she will develop breast cancer during her lifetime. A woman who has her first menstrual period at an early age is more likely to be diagnosed with breast cancer than a woman who has her first menstrual period at a later age.
Read More: Breast Cancer, Menstruation, Diet & Exercise
From the website: 'The Society for Menstrual Cycle Research is a nonprofit, interdisciplinary research organization. Our membership includes researchers in the social and health sciences, humanities scholars, health care providers, policy makers, and students with interests in the role of the menstrual cycle in women's health and well-being.'
'When women and girls view their bodies as powerful sources of wisdom, profound healing occurs at the individual’s physical, emotional and spiritual level.' (Kelly Rose Mason)
From the website: 'The Red Web Foundation is a non-profit organization dedicated to supporting a positive societal view of girls' and women's bodies and menstrual cycles from first menstruation (called menarche) through menopause.
Page Title: 'Female menstrual Cycle: Evolution & Menstruation.
Anatomy, Ovulation, Vagina, Emotions, Hormones, Pictures, Sex Fetish'.
Want to be Involved? Join us in this research, which provides an excellent opportunity to present to the world the latest knowledge about the thing we all find most interesting - sex! The work will not just benefit humanity, it will profoundly enhance your own sexuality as you learn more about our complex and diverse sexual evolution.
We seek help in finding the latest scientific (evolutionary) research on our biological and cultural sexual evolution and distributing content (overviews / summaries) to relevant pages.
This site is well respected. We are listed as the Top Philosophy Website on the Internet with around 600,000 page views each week. So your contributions will be seen and read, and will be providing humanity with a great source of wisdom about a very important subject (that currently suffers due to cultural / religious myths).
If you would like to be involved (or have comments about this website) please write to us. Many thanks! Karene
Analyse any human emotion, no matter how far it may be removed from the sphere of sex, and you are sure to discover somewhere the primal impulse, to which life owes its perpetuation. ... The primitive stages can always be re-established; the primitive mind is, in the fullest meaning of the word, imperishable. ... Mans most disagreeable habits and idiosyncrasies, his deceit, his cowardice, his lack of reverence, are engendered by his incomplete adjustment to a complicated civilisation. It is the result of the conflict between our instincts and our culture. (Sigmund Freud)
We get a lot of people writing to us asking questions about sex. So we have added an 'Ask a Question' feature to our sexuality pages - to help share questions and answers as a way of helping one another.
Please use Facebook Connect (below) to add your questions / comments - the best questions and answers will be added to the page.
Karene (September, 2012)
Come and say hello to Karene - join a friendly (kind, sexually enlightened, moral) network.
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