Dioxin is linked to cancer, skin disease and reproductive problems such as miscarriages and birth defects.

CNN: Warning -- this garbage is dangerous

Other health conditions affected by changes in circadian rhythms, according to the AMA report, may include obesity, diabetes and reproductive problems.

CNN: Unplug! Too much light at night may lead to depression

Although she has no reproductive problems, at 39 she started panicking.

FORBES: Vatican Venture Capitalists Wanted This Fertility Tool

But one thing is clear: almost all of the evidence cited by anti-chemical campaigners is based on research linking phthalates to reproductive problems in rodents exposed to dose levels far higher than any human might face.

FORBES: Connect

Selenium causes reproductive problems in animals.

NPR: Coal Ash May Pose Health Hazard

Parental factors, such as low-quality semen, reduced ovarian egg supply, reproductive organ abnormalities and lifestyle may play a role in neurodevelopmental problems in children, researchers said.

WSJ: Predicting Carpal Tunnel Syndrome