• Researchers don't yet know how to explain these correlations -- and since the study was not a controlled trial, it's not clear whether marijuana or some other factor in marijuana users' lifestyles actually accounted for the beneficial effects.

    CNN: Marijuana: The next diabetes drug?

  • The study itself contains a study designed to look for genes that might explain why some people respond and others don't.

    FORBES: Race-Based Medicine, Genomics And You

  • The next is that this variation has little to do with things you might suppose would explain it: class sizes, hours of study per subject, and spending per pupil.

    ECONOMIST: Education and the wealth of nations

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