endocrine system

For years researchers have been investigating the hypothesis that trace levels of such industrial chemicals as pesticides, chlorinated compounds, and heavy metals are hazardous to human health.

Although studies have failed to establish a causal relationship, some scientists and activist groups continue to emphasize the role of trace levels of synthetic chemicals in human illness.

This continuing focus may be attributed, in part, to our increased ability to detect low levels of chemicals in the environment. It may also stem, however, from a collective - and often irrational - fear of such substances. In this report the American Council on Science and Health (ACSH) explores the endocrine disrupter hypothesis, which asserts that certain (primarily man-made) chemicals act as...