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Why the Sun Is Necessary for Optimal Health

How is it that sunlight, once regarded as a divine power in some cultures, has come to be classified as a Class 1 carcinogen by the World Health Organization (WHO)? This is a question posed by photobiologist Dr. Alexander Wunsch, CEO of Medical Light Consulting in Heidelberg, Germany. It’s a fundamental one because it shows the dichotomy between sunlight in …