A study published in Nature has found that people living in the same household tend to have similar microbes in their bodies, and the longer they live together, the more similar these microbiomes become. This raises the possibility that diseases linked to microbiome dysfunction, such as cancer, diabetes, and obesity, could be partly transmissible. The study is the most comprehensive to date on how and why the microbes in our bodies change over time. It found that mothers have the strongest impact on the microbial makeup of their children’s guts, but as children age, other family members and even housemates become more important sources of gut microbes. The study also found that people who live together tend to have similar microbe strains in their mouths, regardless of their relationship.
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Living Together, Sharing More Than Just a Roof
GIbiome 