研究者怀疑：normal sexual activities , child raising all help stimulating blood circulation of reproductive organs and maintaining healthy level of harmone of females。另一个相关的现象是女性更年期的到来与癌症发病率的关系。就是文章中说的45岁前后的比较。注意Summary Finding (c)。
羡慕.... Not everyone can have what you own now.
-stressfree(winter);
2013-3-25{207}(#15849@30)
No love, no kid, no intimacy, nothing for me at all. Everyday when I wake up, I find life is nothing but duty. Esp when one doesn't have money, it is hard to think of anything like love, marriage, sex, etc.