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Scientists say house dust could make us fat. They say that people should keep their house if they want to avoid putting on . The scientists are from Duke University in the USA. They did some on how dust affects mice. The researchers collected dust from 11 different houses and put them in the cells of mice. Dust from nine of the houses made the mice . The scientists said house dust changed the in the mice that create fat in their body. The said that we breathe in and swallow small of dust. Researcher Dr Heather Stapleton said: "Amounts of dust as as three micrograms…caused effects."

The dust contained chemicals called EDCs. These can change or copy the body's hormones. EDCs are found in and carpets to make them fire . They are also added to some , to make them bend more, and in cosmetics, food , and household cleaning products. The researchers said EDCs are everywhere in most houses. They say the chemicals can affect our , and that children are at a higher risk. EDCs also cause health risks including creating learning in children. Studies have also shown that EDCs can raise the risk of cancer and . The researchers said there was a "critical need" to assess we make that can make us unhealthy.

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