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  1. Humans

    Letters from the January 14, 2006, issue of Science News

    Alcohol calculus “A toast to thin blood” (SN: 11/12/05, p. 317) says, “the blood of people who consume 3 to 6 drinks weekly was less likely to clot in a test tube than was the blood from nondrinkers.” I wonder if there is a rebound effect that could make the blood of new abstainers even […]

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  2. Math

    Team Mersenne

    The largest known prime number now runs to 9,152,052 decimal digits.

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  3. Humans

    Fattening fears

    Parents' concerns over neighborhood safety may cause them to keep their children indoors and thereby increase the possibility that the youngsters will become overweight.