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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.

Agricultural health is the study of environmental, occupational, dietary, and genetic factors on the health of farmers, farm families, pesticide applicators, and others who work with and are exposed to agricultural chemicals.

Alternative test methods are test methods that reduce, refine, or replace animal use in research and testing.

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.

A harmful algal bloom (HAB) occurs when toxin-producing algae grow excessively in a body of water. Algae are microscopic organisms that live in aquatic environments and use photosynthesis to produce energy from sunlight, just like plants. The excessive algal growth, or algal bloom, becomes visible to the naked eye and can be green, blue-green, red, or brown, depending on the type of algae.

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

This study is being conducted for families with siblings or twins in which one sibling has developed a systemic autoimmune disease and the other sibling does not have an autoimmune disease. The goal is to understand the genetic and environmental factors that may result in autoimmune diseases

The Immunity Cells in Blood Study will determine how immune cells in the bloodstream may, under certain circumstances, contribute to inflammation.

Educational information for kids about pollution is presented by NIEHS.

Science experiments for kids to enjoy!