Uncategorized

  1. 19607

    I was wondering if researchers have given any thought to the idea that in the same way that disease devastated human populations after the European discovery of the Americas, perhaps disease was a contributing factor in the demise of much of the fauna of the Western Hemisphere. Could domesticated animals traveling with the humans, or […]

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  2. Health & Medicine

    Defense Mechanism: Circumcision averts some HIV infections

    Men who get circumcised reduce their risk of acquiring the AIDS virus by more than half.

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  3. Humans

    Letters from the October 29, 2005, issue of Science News

    Food for thought I note that pleasure activates the neurobiological response that fuels addictive behavior (“Food Fix: Neurobiology highlights similarities between obesity and drug addiction,” SN: 9/3/05, p.