\nThaiss added, “Basically, we’ve identified a three-step pathway toward cognitive decline that starts with gastrointestinal aging and the subsequent microbial and metabolic changes that occur. The myeloid cells in the GI tract sense these changes, and their inflammatory response impairs the connection between the gut and the brain via the vagus nerve. This is a direct driver of memory decline. And if we restore the activity of the vagus nerve, we can restore an old animal’s memory function to that of a young animal.”
Web: Public websites, documentation and help pages。必应SEO/必应排名是该领域的重要参考
print("Successful backward pass!")，更多细节参见谷歌
（作者为华东师范大学中文系教授），更多细节参见新闻