If we look at the menstrual cycle of the women, the first part of the cycle is dominated by estrogen. The estrogen causes the inside lining of the uterus, the endometrium, to proliferate. The second half of the menstrual cycle is dominated by progesterone. Cells do not proliferate, they stop reproducing when progesterone is given to patients. We hypothesize that the cause of prostate cancer is estrogen stimulation, not testosterone .
Young men have high levels of testosterone and old men low levels.
If testosterone were the cause of prostate cancer, young men would be dying of prostate cancer. Obviously this is not true. It turns out that synthetic estrogen is fed to cattle and chickens that we eat to make them grow faster and fatter. The manufacturer's of this meat claim that the hormones wash out of the animal's system by the time it gets to our table. However, originally only the urine levels are checked to assess the synthetic estrogen hormone levels.