Photobiology is the therapeutic use of light to improve health. In this interview, Dr. Alexander Wunsch, one of the leading experts in photobiology, explains the historical significance of photobiology.

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https://articles.mercola.com/sites/articles/archive/2017/02/05/therapeutic-use-of-full-spectrum-light-improve-health.aspx

STORY AT-A-GLANCE

  • Photobiology is the therapeutic use of light to improve health. Heliotherapy is the therapeutic use of sunlight
  • In the late 19th century, we started gaining a great deal of knowledge about how light acts on the human body, starting with the experiments of A. Downes and T.P. Blunt, who discovered that UV radiation kills bacteria
  • From 1900 to 1950, phototherapy was a state of the art therapeutic intervention in medicine. Today, much of what was common knowledge has been lost, and we’re now rediscovering the vital importance of sunlight