the art of using light for health and happiness Ryberg, Karl creator author. text bibliography nyu New York Enliven Books 2018 First Enliven trade paperback edition. monographic eng 1 online resource. "In this groundbreaking guide to maximizing the restorative and regenerative benefits of light, psychologist Karl Ryberg explains how to use different types of light--sun, fire, and even artificial lighting--in order to create ultimate health and a happy mind"-- My personal light journey -- What is light and why is it important? -- Why do we need natural light? -- Electric light -- Super lights -- Eye fitness -- Lighting in the home -- The light diet. Karl Ryberg. "Originally published [as Light your life] in Great Britain in 2018 by Yellow Kite, an imprint of Hodder & Stoughton, an Hachette UK company"-- Title verso. Includes bibliographical references and index. Phototherapy Light sources RM837 615.8/31 Ryberg, Karl, author. New York : Enliven Books, [2018] First Enliven trade paperback edition. (DLC) 2018038291. 9781473661547 : 2018052039 DLC 181029 20230921135326.0 0000032076 eng