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  1. Earth

    Can polluted air cause birth defects?

    For the second time, scientists have found evidence suggesting that prenatal exposure to air pollution may cause certain birth defects.

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  2. People with malaria attract more mosquitoes

    The protozoan causing malaria may facilitate its own spread by making people more alluring to mosquitoes.

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  3. Placebo reins in pain in brain

    Pain relief provided by inert medications may reflect increased transmission of a brain chemical involved in regulating stress and suppressing pain.

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  4. 19587

    The research into placebos’ pain relief in this article should probably be tied in with the recent work utilizing hypnotism for pain relief.