Chronic immune response might be stunting growth in millions of kids. Elevated immune function, tied to chronic exposure to soil-transmitted parasitic worms, was linked to a growth reduction of up to 49 percent. Energetic demands of immunity divert calories from growth, researchers argue.

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Chronic immune response might be stunting growth in millions of kids. Elevated immune function, tied to chronic exposure to soil-transmitted parasitic worms, was linked to a growth reduction of up to 49 percent. Energetic demands of immunity divert calories from growth, researchers argue.