2. September is China Brain Health Month, September 16 is 18 China Brain Health Day, and September 2 1 is the annual World Alzheimer's Day. The establishment of two "days" highlights the importance of "brain health" and its degree of concern. It is understood that there are currently nearly 7 million patients with cerebrovascular diseases in China, and more than 2 million new patients are added every year. China's research on brain health in the medical field mainly focuses on typical diseases such as cerebrovascular disease, Alzheimer's disease, epilepsy and mental retardation. Among all diseases, cerebrovascular diseases have the highest disability rate, and more than 70% leave various sequelae.