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  1. Health & Medicine

    Louis Pasteur’s devotion to truth transformed what we know about health and disease

    Two centuries after his birth, Louis Pasteur's work on pasteurization, germ theory and vaccines is as relevant as ever.

    By Tom Siegfried
  2. Archaeology

    Some Maya rulers may have taken generations to attract subjects

    Commoners slowly granted authority to kings at the ancient Maya site of Tamarindito, researchers suspect.

    By Bruce Bower
  3. Health & Medicine

    At a long COVID clinic, here’s how doctors are trying to help one woman who is struggling

    As more people experience long-term health problems from COVID-19, long COVID clinics try to help patients manage symptoms, like brain fog and fatigue.