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Amphetamines boost stroke survivors’ speech
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Cost of evolution runs into billions
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Wakey-wakey!
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Drug-resistant HIV cases could soar
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Rain-making linked to killer flood
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Genes control age of menopause
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Stem cell line list gets sceptical reception
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Catnip’s powerful pong repels mosquitoes
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Oestrogen boosts memory in Alzheimer’s patients
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Chilli-eating chickens repel bacteria
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Clone farm
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Stop the rot
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