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  1. Humans

    Letters from the June 10, 2006, issue of Science News

    Know the drill Could it be that the ancient teeth discovered with drill marks but no signs of fillings (“Mystery Drilling: Ancient teeth endured dental procedures,” SN: 4/8/06, p. 213) were drilled to relieve abscesses? On a long holiday weekend years ago, a dentist opened and drained an abscess for me until I could get […]

    By Science News
  2. Health & Medicine

    For women, weight gain spells heartburn

    A study of more than 10,000 women suggests that weight gain is associated with heartburn.

    By Eric Jaffe

  3. Chimps lead way to HIV birthplace

    A viral analysis confirms that the global AIDS epidemic originated in chimpanzees living in southeastern Cameroon.