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Ragweed and other weeds such as curly dock, lambs quarters, pigweed, plantain, sheep sorrel and sagebrush are some of the most prolific producers of pollen allergens

Reproductive health refers to the diseases, disorders and conditions that affect the functioning of the male and female reproductive systems during all stages of life.

Many of us have probably seen news stories about something commonly referred to as PFCs or perfluorochemicals. You may not know exactly what they are, but can probably guess that they have something to do with the environment and your health. The National Institute of Environmental Health Sciences (NIEHS) and the National Toxicology Program (NTP), an interagency testing program headquartered at NIEHS, are studying many of these compounds.

Information to help kids to learn more about our environment, our health, and how NIEHS plays an important role in learning more about how the two are connected.

Science may seem like it’s a strange thing — complicated, even a mystery. But really, science is all about finding out about nature and how things work, the reasons behind every day things.

Click on the pictures for lots of coloring pages that can be printed!

Many people think animal allergies are caused by the fur or feathers of their pet.

Hazardous wastes are discarded materials with properties that make them potentially harmful to human health or the environment.

Millions of Americans and people worldwide are overweight or obese.

Hexavalent chromium is a form of the metallic element chromium. Chromium is a naturally occurring element found in rocks, animals, plants, soil, and volcanic dust and gases.