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A pesticide is any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests.

Flame retardants are chemicals that are added or applied to materials in order to slow or prevent the start/growth of fire. They have been used in many consumer and industrial products since the 1970s, to decrease the ability of materials to ignite.

El AIRE, el AGUA, el SOL, el POLVO, las PLANTAS y los ANIMALES, las SUSTANCIAS QUíMICAS y los METALES de nuestro MUNDO... Sustentan la vida.

Many women develop irregular menstrual cycles which may make it difficult to become pregnant and increase the risk of osteoporosis.

This study will evaluate subjects with adult- and childhood-onset myositis to learn more about their causes and the immune system changes and medical problems associated with them.

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.

Autism, also known as ASD, is a spectrum of disorders that causes impairment in social interaction, as well as the presence of repetitive, restricted behaviors and interests.

Millions of Americans and people worldwide are overweight or obese.

NIEHS funds a substantial portfolio of research in the field of environmental health sciences conducted by investigators in many disciplines from various organizations. These research activities span the range from basic mechanistic research to clinical and epidemiologic studies using human subjects. NIEHS-supported investigators are currently determining how environmental agents cause or exacerbate a variety of human diseases. NIEHS is also committed to developing the next generation of environmental health scientists by supporting a variety of interdisciplinary training programs.

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.