By Jörg Reichrath
The sun is vital, for example for the formation of vitamin D, but on the other hand it is life-threatening as a cause of skin cancer. In this guide, the reader learns everything important about the sun and gets answers to questions such as: How do the sun’s rays affect the organism, the immune system and our “internal clock”? Can the sun protect against allergies, COVID-19 and other diseases? Why does vitamin D deficiency make you ill? When are vitamin D supplements useful? Does sunburn increase the risk of skin cancer? Are children particularly at risk? Using a step-by-step scheme, the reader receives individual recommendations for dealing with the sun in a healthy way and tips for optimal vitamin D supply.
