With the proliferation of xenoestrogens, environmental estrogens that are bringing on periods younger and younger, many girls are as young as eight when Aunt Flow arrives.
While it may improve symptoms for some women, the phytoestrogens (plant estrogens) that may help relieve hot flashes may also increase the risk of breast cancer.
If at all possible, try to abstain from synthetic estrogens contain in some hormone replacement therapies, especially those which are derived from the urine of horses.