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Endocrine disruptors are chemicals that may interfere with the body’s endocrine system and produce adverse developmental, reproductive, neurological, and immune effects in both humans and wildlife.

Hydraulic fracturing, or fracking, is a method used to extract natural gas and oil from deep rock formations known as shale. Using this method, drilling operators force water, sand, and a mix of chemicals into horizontally drilled wells, causing the shale to crack and release natural gas or oil.

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.

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.

Biomarkers are key molecular or cellular events that link a specific environmental exposure to a health outcome.

Toxicology is a field of science that helps us understand the harmful effects that chemicals, substances, or situations, can have on people, animals, and the environment.

Aprender lo que es el magnesio y lo que hace en el cuerpo, cuales alimentos son fuentes de magnesio, y de los suplementos de magnesio.

Recommended intakes and sources of magnesium, effects of deficiency and excess, groups at risk of inadequacy, and interactions with medications.

Find out what magnesium is and what it does in your body, what foods provide it, and about magnesium supplements.

Aprender lo que es el hierro y lo que hace en el cuerpo, cuales alimentos son fuentes de hierro, y de los suplementos de hierro.