Health and medicine explained.

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• There's a Safer Smallpox Vaccine ... And thanks for asking, but you can't have it.
  Jon Cohen Oct. 10, 2002
  
• Dead Heat Why don't Americans sweat over heat-wave deaths?
  Eric Klinenberg July 30, 2002
  
• Hormonal Imbalances Why were all those women taking hormones in the first place?
  Emily Yoffe July 11, 2002
  
• Teaching Old Drugs New Tricks Pharmaceutical companies won't study whether cheap old drugs work better than expensive new ones. But NIH should.
  Emily Yoffe June 5, 2002
  
• Strep Threat Can a sore throat lead to Tourette's syndrome?
  Emily Yoffe Feb. 27, 2002