\nThey found that the shared digs caused the microbiomes of the young mice to more closely resemble that of the older animals. When they compared the abilities of the mice to recognize a novel object, or to find the exit in a maze, the young mice with “old” microbiomes performed significantly more poorly than their peers — showing less curiosity about the unfamiliar object and bumbling about the maze in ways similar to that of old animals.
\nThe mouse study showed that the composition of the naturally occurring bacterial population that lives in the gut, known as the gut microbiome, changes with age — favoring some species of bacteria over others. These changes are registered by immune cells in the gastrointestinal tract, which spark an inflammatory response that hampers the ability of the vagus nerve to signal to the hippocampus — the part of the brain responsible for memory formation and spatial navigation. Stimulating the activity of the vagus nerve in older animals turned old, forgetful mice into whisker-sharp whizzes able to remember novel objects and escape from mazes as nimbly as their younger counterparts.，更多细节参见吃瓜
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Ранее депутат Сергей Гаврилов предупредил россиян о новой уловке мошенников. По его словам, аферисты начали рассылку писем с досудебными претензиями.