Although the relationship between endogenous hormones and cancer proportional (i.e. high levels of stimulation, the high cancer risk), but the relationship between phytoestrogens and cancer was inversely correlated (i.e. the phytoestrogen levels higher cancer risk decreases) faster with exercises
No one knows why there is a “paradox” as just said, but many experiments in mice showed that phytoestrogens have the potential to reduce the growth of cancer cells. In this study, the researchers treated two groups of mice (a group of phytoestrogens, and a control group that did not have any drugs), and both groups are to live in an environment that cause cancer.
The research results showed that the group treated with phytoestrogens have arisen cancer rate significantly slower than the control group, and this proves that phytoestrogens can have a positive effect in preventing the cancer depends on hormones.
Menstrual cycle – In white women, the menstrual cycle in people with breast cancer less than about 2 to 3 days compared with those who do not cycle in breast cancer faster with exercises
Menstrual cycle in women with whites on average shorter cycles in Asian women about 2 to 3 days, and this difference was suggested to be related to soy consumption in Asian higher than in the West in general.
Therefore, based on these data are, we cannot conclude that phytoestrogens have the ability to prolong the menstrual cycle, and menstrual cycle is relatively long in Asian women make is not affected by phytoestrogens.