clean
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Disinfecting Mobile Phones Daily Could Help Stop Diseases Spreading
There are billions of mobile phones in use around the globe. They are present on every single continent, in every single country and in every single city.
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How Your Brain Cleans Itself
Your brain needs to clean itself. Not because it’s cluttered with inane thoughts or clogged by your filthy sense of humour, but because — like every other organ — it creates waste products. Now, scientists have worked out how it keeps itself clean.