John Nash Ott
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As man has become more industrialized, living under an environment of artificial light behind window glass and windshields, watching TV, looking through coloured sun-glasses, working in windowless buildings, the wavelength energy entering the eye has become greatly distorted from that of natural sunlight. Much of the development of modern lighting has, unfortunately, been toward the use of light sources of increasing distortion.
The story of John Ott’s discovery of the role light plays in sustaining physical health is one of the true scientific breakthroughs of the last half century. It is the story of an observant, intelligent man who acted upon his observations and then supported them with scientific exploration. Health and Light has led many people to a greater understanding of the subtle role light plays in maintaining physical and emotional health.