 The gut microbiota plays an important role in maintaining the health of the host, and its imbalance is associated with several neurological diseases such as Parkinson's disease, Alzheimer's disease, and myosthenia gravis. That microbiota transplantation in animals suggests that these diseases could be transmitted between humans and animals. Further research is needed to understand how the gut microbiota affects neurological diseases and develop new treatments based on gut microbiota. This article was authored by Lan Xiang Liu, Hai Yang Wang, Xu He Chen, and others.