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  1. Health & Medicine

    Cocaine trumps food for female rats

    A study in rats finds that males prefer food over cocaine while females prefer the drug, a step toward better understanding of sex differences in addiction.

    By Laura Sanders
  2. Health & Medicine

    Alcohol heart benefits show up even after bypass surgery

    Having two to three drinks a day was associated with decreased heart problems in men during the three years after the operation, researchers from Italy report.

    By Nathan Seppa
  3. Health & Medicine

    Mom’s past drug abuse may alter brain chemistry of offspring

    A new study in rats suggests that the lingering effects of adolescent opiate use may be passed on for two generations, even if the female is drug-free when she gets pregnant.