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The presence of multiple orbiting companions is incompatible with the mechanism of stellar formation so they must be planets after all.
ECONOMIST: Planet hunting
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This has led Dr Arendt to suggest that rather than being a part of a disease process, the formation of the tau protein could be a mechanism by which the brain protects itself.
ECONOMIST: Dementia
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Dr Blumberg believes the compound interferes with the body's normal fat-formation process, and puts its fat-storage mechanism on overdrive, plumping up the person.
ECONOMIST: Obesity