In Living Light, psychologist Karl Ryberg summarizes a lifetime of research into the role of light in the health and well-being of the human species: "It is my belief that good-quality light in our daily lives is far more important than we might think," he argues in the introduction. He goes on to state that light (and light therapy) can be used to treat a host of health issues, "including sleeplessness, insomnia, depression, and even infertility."
Some of these claims seem radical at first, but Ryberg backs them up with his own research and experience as a light psychologist. This research is further supplemented by other studies, all of which are referenced in a comprehensive list of further reading recommendations and end-note citations. Despite its reliance on science, however, Living Light does not veer into technical jargon. On the contrary, Ryberg offers a comprehensive background on what light is, how the eye and brain receive it and its importance. Further chapters break down the differences between natural, electric and super lights, all of which is accessible and understandable for the average reader. After building this scientific foundation around the principles of light science, Ryberg then offers concrete, actionable steps readers can take to improve their own light health, including "eye yoga," sunbathing and healthy diet tips for optimal light absorption.
Ultimately, Living Light is a concise book packed with insights into human biology and psychology, the science of light and how the two intersect in our day-to-day lives--whether we recognize it or not. --Kerry McHugh, blogger at Entomology of a Bookworm