User:Hecutright7/sandbox

Evolutionary explanation

change "breastfeeding infertility" to "breastfeeding infecundity"

add to physiology and add citation in return of fertility section

add cross cultural studies

https://www.ncbi.nlm.nih.gov/pubmed/8994235 discusses level of education of the mother relating to how long she breastfeeds

https://www.ncbi.nlm.nih.gov/pubmed/8200881 suckling and breastfeeding in Peru, Kenya, and PNG

possibly update citation #2

ADD A CITATION ASSIGNMENT

citation for return to fertility section about effects suckling on lactational amenorrhea

Taylor, H W, et al. “Continuously Recorded Suckling Behaviour and Its Effect on Lactational Amenorrhoea.” NCIB.gov, Journal of Biosocial Science, 31 July 1999, www.ncbi.nlm.nih.gov/pubmed/10453245.

Article first draft

Evolutionary Explanation/cross cultural comparisons

lactational amenorrhea has evolved as a mechanisms for preserving the health of the mother. The period of infecundity allows the mother to focus her energy on breastfeeding as well as allow time for her body to heal between births. The frequency and durations of the feedings determine how long the mother will continue to be infecund during breastfeeding. However there is variation across different cultures. The Turkana, Gainj, and Quechua societies all breastfeed on demand until their child is around 2 years old. The timing of returned ovulation for these women is however varied. Because of this interbirth intervals vary across these three societies.(Gray, S J. “Comparison of Effects of Breast-Feeding Practices on Birth-Spacing in Three Societies: Nomadic Turkana, Gainj, and Quechua.” Current Neurology and Neuroscience Reports., U.S. National Library of Medicine, Jan. 1994, www.ncbi.nlm.nih.gov/pubmed/8200881.)

Neah, I am sorry for this being so late I thought I had put my comments down but I did it wrong I was putting my info in the wrong spot as well as I thought it was correct because it said "sandbox". The one thing I was mentioning before and don't know if you would like to make changes of this could be looking on how primates do this. This could be interesting as it would allow us to know how evolution could have worked. Overall I like what you have so far sources seem to be reliable so no problem there.

thank you! -Hannah