Fact Sheets

Silent Spring Institute Research

More than three hundred years ago, Italian physician Bernardino Ramazzini noticed that nuns developed breast cancer more often than other women. He suspected that their lack of childbearing accounted for the difference, and he theorized that reproductive hormones affect a woman’s risk of the disease.  read more »

Breast Cancer and the Environment

Breast cancer rates have risen in the United States; between 1973 and 1998, rates increased by more than 40 percent. Identified breast cancer risks cannot account for this escalation. That means that additional, unknown causes must be at work. If we can find out why incidence is increasing, we can learn to prevent future disease.  read more »

Risk Factors for Breast Cancer

Many risk factors for breast cancer are related to prolonged exposure to estrogen and other hormones that play a role in a woman’s menstrual cycle. These risk factors include early menarche, late menopause, having children late in life, never bearing children, and never breastfeeding.  read more »

The Precautionary Principle

The precautionary principle advocates common sense. This principle states that evidence of harm, rather than definitive proof of harm, should prompt policy action.  read more »

Body Burden

The chemical burden we all carry from our increasingly polluted world continues to grow heavier. Not even the newest members of society are safe: One study found the umbilical cord blood of 10 newborns to contain an average of 200 contaminants—including a range of pesticides, flame retardants, and other pollutants—a chemical inheritance from time spent in the womb.  read more »

Reducing Your Exposure to Toxics

We can take steps to change our exposure to harmful chemicals in the world around us.  read more »