Money today is fiat money, a symbol of value created by the human imagination with no intrinsic value of its own. A coin or paper currency note has value because people accept it as a symbolic medium of exchange. The economic value of money as measured by its purchasing power is a subject of economic theory. However economics does not explain how individual human beings and societies came to accept symbolic money as a medium of exchange or store of value. The process of according value to a symbol is psychological and social.
Phytoestrogens in Soy Milk. Foods and beverages made from soy contain chemicals called isoflavones. These chemicals have estrogen-like effects on the body, so they are often called phytoestrogens -- that is, estrogen that comes from plants. The isoflavones can bind to estrogen-responsive areas on cells in the reproductive organs, liver, brain and other tissues.
1 Until more is known about soy's effect on estrogen levels, women who have or who are at increased risk of developing breast cancer or other hormone-sensitive conditions (such as ovarian or uterine cancer) should be particularly careful about using soy and should discuss it with their health care providers.