polycarbonates

Toxic time bombs.

Decades of evidence point to the untoward health effects of endocrine disruptor exposures, yet little is being done to regulate the chemicals.

Hormones—chemical messengers secreted by internal (endocrine) glands to control body functions—were discovered as the 20th century began, launching the field of endocrinology. Within a few decades, several natural steroids including the sex hormones estrogen, progesterone, and testosterone had been identified. But since the 1930s, we have been increasingly exposed to many endocrine disruptors—artificial organic substances that mimic natural hormones and can threaten human health.

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