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Are you de­pen­dent on your dish­washer? A re­cent study that in­ves­ti­gated the “hy­giene hy­poth­e­sis”—the idea that chil­dren raised in overly san­i­tized en­vi­ron­ments are less likely to de­velop im­mu­nity to some al­ler­gens—found that kids raised in house­holds where dishes were al­ways washed by hand rather than in a dish­washer had half the rate of al­ler­gies; that num­ber was fur­ther re­duced if the chil­dren also ate lo­cally grown and/or fer­mented foods. Although this re­la­tion­ship demon­strates only an as­so­ci­a­tion and not cause-and-ef­fect, the re­searchers spec­u­late that wash­ing dishes by hand might leave be­hind some ben­e­fi­cial bac­te­ria that could strengthen de­vel­op­ing im­mune sys­tems. Source: Pe­di­atrics

Bac­te­ria With Ben­e­fits //

A new study sug­gests that a com­mon gut mi­crobe might curb the risk of de­vel­op­ing mul­ti­ple scle­ro­sis (MS)—at least in women. About half the world’s pop­u­la­tion is in­fected with the bac­te­ria—He­li­cobac­ter py­lori, which is usu­ally ac­quired be­fore age 2—and most of those peo­ple live in the de­vel­op­ing world, where hy­giene stan­dards are lower and an­tibi­otics tend to be pre­scribed less than they are in de­vel­oped coun­tries.

The study demon­strated that the preva­lence of the in­fec­tion was sig­nif­i­cantly lower in those with MS than in the com­par­i­son group, but only among women, in whom it was around 30 per­cent lower.

In ad­di­tion, those women with MS who tested pos­i­tive for the mi­crobe seemed to be less dis­abled by their con­di­tion than those who tested neg­a­tive for the in­fec­tion.

The re­searchers spec­u­late that, if this in­for­ma­tion is con­firmed in other stud­ies, it might prove the afore­men­tioned hy­giene hy­poth­e­sis—the idea that child­hood in­fec­tions help to prime and reg­u­late the im­mune sys­tem and ward off au­toim­mune and al­ler­gic dis­eases later in life. Source: The Jour­nal of Neurology, Neu­ro­surgery & Psy­chi­a­try

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