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October 29, 2015
  • 29 Oct 2015

    How do we know this works?

    As recently as the late 19th century, some physicians were convinced that practices such as bloodletting patients were effective methods for treating certain illnesses. Nowadays, we know such treatments to be useless or even damaging, but it wasn’t until people started challenging these ‘experts’ that change finally came about.In this instance, change was the result of people asking: how do we know this works? This simple question encouraged the making of hypotheses, trials and production of verifiable results.