Gap Fill - Greying Hair - Level 4


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   biologists      cells      chemical      heat      how      reaction      researcher      stress      them      what  

Paragraph 1

Scientists found that turns hair grey in mice. Stem cell from Harvard tested mice to find stress affected . The scientists injected the mice with the -giving ingredient in chili peppers. This caused a hair-colouring in the mice to overwork in to the stress. It used up all colour-regenerating . The mice's hair quickly turned white. A said this was, "beyond I imagined".

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