: In 2019, there were several new epidemics of diseases around the world, which would only be known from old medical books. Conspiracy and antivax movements around the world have raised important issues about public health, its safety, prevention and the media. The importance of public health is increasing more than ever. That is why we are very pleased that we have succeeded in collecting enough quality articles to present a collection of papers this year again. We have a great need for quality data to combat disinformation, hoaxes and lies. But we also have a greater need to deliver this information to medically untrained people. We - doctors, nurses and medical workers - have lost our ability to talk to people, talk to them in ways they can actually understand us. This, and lack of time for patients, has brought us to this situation and only patience, good data and easily understandable language can give us success. We also have an important task to renew people's trust in doctors and to humanize modern medicine. So, together with the fight against epidemics, setting new standards for occupational safety or ensuring healthy habits for children, adults and the elderly, we should not forget to communicate in the first place. We are grateful for the opportunity to provide you with this supplemental issue of Neuroendocrinology Letters, where support for public health issues has always been strong.