This article discusses chemicals that alter your hormones and how to avoid them. This goes beyond the reproductive system. For instance:
"The metal [mercury] may also play a role in diabetes, since mercury has been shown to damage cells in the pancreas that produce insulin, which is critical for the body’s ability to metabolize sugar."
Arsenic can disrupt the glucocorticoid system. This "has been linked to weight gain/loss, protein wasting, immunosuppression, insulin resistance (which can lead to diabetes), osteoporosis, growth retardation and high blood pressure."
Fire retardants have been found in breast milk and can disrupt thyroid function.
Curious? Read on.