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Japanese study links dog ownership in teens to higher happiness and sociability via beneficial gut bacteria.
A Japanese study of 343 teenagers finds that living with dogs is linked to greater happiness and sociability, possibly due to increased levels of beneficial Streptococcus bacteria in the gut, potentially transferred through dog saliva.
Researchers from Azabu University suggest this may reduce depression risk and support mental well-being.
While experts warn against dogs licking babies’ faces due to infection risks, the findings add to evidence that dogs enhance human health by encouraging activity, emotional support, and immune system development through microbial exposure.
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Un estudio japonés vincula la propiedad de perros en los adolescentes a una mayor felicidad y sociabilidad a través de bacterias intestinales beneficiosas.