You may have heard that antiperspirants cause breast cancer. And you may have heard the National Cancer Institute insists they don't. But now there's evidence that they do, in fact, cause breast cancer. And now we know why.

We've known for years that abnormal estrogen metabolism is at the root of breast cancer. Estrogen is carcinogenic when it's in excess or out of balance.

Now a new study indicates that aluminum adversely affects your estrogen metabolism. In fact, the researchers discovered that both aluminum and cadmium bind to estrogen receptors in your breasts. (Cadmium is a toxic metal that you can accumulate through smoking.)

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By binding to estrogen receptors, they stimulate the breast cells as if they were really estrogen. This is a similar reaction we find when environmental chemicals accumulate in the breast and prostate. And now we know that metals have the same effect. The result from these xeno (fake) estrogens is almost always cancer.

But here's where this story gets really scary. Almost every antiperspirant you find in the drugstore, grocery store, or discount store has aluminum in it. In fact, aluminum makes up nearly one-fourth of the volume of many brands. What's worse is that you apply it right next to your breasts. The law of mass action says that some will be absorbed and find its way into your mammary tissue.

If you're like most women in the U.S., you probably apply your antiperspirant right after you shave. Shaving abrades your skin. This gives the aluminum-containing rubs or sprays easier access into your body. And you can be sure it will adversely affect the health of your breasts.

It's imperative you avoid aluminum. You can start by staying away from antiperspirants. You'll find aluminum-free antiperspirants at your local health food store and on the Internet. But that's not all you need to avoid. Aluminum is everywhere. It's the most abundant metal on earth. In fact, aluminum is in cosmetics, pots and pans, antacids, and even in vaccines. So watch what products you use very carefully. Your life depends on it.

Ref: Darbre, P.D. "Metalloestrogens: An Emerging Class of Inorganic Xenoestrogens With Potential to Add to the Oestrogenic Burden of the Human Breast." Journal of Applied Toxicology 2006; DOI:10.1002/jat.1135.

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