Your energy-efficient washing machine could be harboring pathogens

For the first time ever, investigators have identified a washing machine as a reservoir of multidrug-resistant pathogens. The pathogens, a single clone of Klebsiella oxytoca, were transmitted repeatedly to newborns in a neonatal intensive care unit at a children's hospital. The transmission was stopped only when the washing machine was removed from the hospital.

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The happiest introverts may be extraverts

If you are an introvert, force yourself to be an extravert. You'll be happier. That's the suggestion of the first-ever study asking people to act like extraverts for a prolonged period. The benefits of extraversion have been reported before, including those of ''forced extraversion,'' but usually only for brief intervals.

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