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  1. Health & Medicine

    Salve for the Lungs: Aspirin might prevent asthma

    Regular use of aspirin may prevent healthy adults from developing asthma.

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  2. Mind over Muscle: Placebo boosts health benefits of exercise

    The physical rewards of exercise derive not just from muscular exertion but also from a person's mind-set about exercise.

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  3. Tech

    Making a 3-D Microscope: Technique brings entire sample into focus

    A new imaging technique creates microscopic three-dimensional views of tissues within a patient's body and can update those images several times a second.

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  4. Addiction Subtraction: Brain damage curbs cigarette urge

    Scientists have identified an area of the brain where damage seems to quickly halt a person's desire to smoke.