**About the Editor**

**M. Hasan Mohajeri** (Professor) is a Lecturer at the Medical Faculty of the University of Zurich, Switzerland. He has a solid publication record with more than 110 contributions in topics related to brain development and aging as well as the interaction between the nervous system and the gut microbiota (scholar search: https://scholar.google.co.uk/citations?hl=de&user=OWHRJzEAAAAJ). He is also the co-inventor of numerous patents. He is a member of the editorial board of several journals. Dr. Mohajeri studied Biochemistry at the University of Zurich, Switzerland, and obtained his Ph.D. in Neurosciences from the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland in 1994. He has more than 20 years of scientific and managerial working experience in large international life science enterprises as well as start-up companies in Europe and the USA.
