noj qab haus huv

Qhov no yog vim li cas cov me nyuam ruam

Fluorine yog qhov ua rau muaj kev ruam rau menyuam yaus

Cov theem siab ntawm kev ruam hauv cov menyuam yaus muaj qhov laj thawj zoo, dua li tsis muaj kev ua haujlwm ntawm lub cev muaj zog Rau cov tiam tshiab, muaj ntau lub ntsiab lus uas tau nkag mus rau peb cov zaub mov thiab nyob rau hauv lub siab ntawm peb cov me nyuam kom nce qib ntawm cov me nyuam txoj kev ruam ob zaug los yog ntau tshaj.

Txij li thaum xyoo XNUMX, fluoride tau ntxiv rau cov kais dej hauv qee lub tebchaws uas muaj kev lag luam los tiv thaiv cov hniav lwj.

Nws tau pom tias cov concentration siab heev ntawm cov tshuaj no ua rau muaj kev puas tsuaj loj rau lub hlwb, thaum cov concentration ntawm cov dej hauv cov kais dej feem ntau tsis txaus ntshai.

Kristen Till ntawm York University hauv Canada, tus thawj coj ntawm kev tshawb fawb luam tawm nyob rau hauv phau ntawv journal JAMA Pediatrics hais tias "Peb pom tau tias muaj kev tsis ntseeg loj txog kev phom sij ntawm fluoride, tshwj xeeb tshaj yog rau cov poj niam cev xeeb tub thiab cov menyuam yaus,"

Txoj kev ua kom txawj ntse

Raws li cov kws tshawb fawb, dej fluoridated tau muab faib rau kwv yees li 66% ntawm cov pej xeem hauv Tebchaws Meskas, 38% ntawm cov pejxeem ntawm Canada, thiab 3% ntawm cov neeg nyob sab Europe.

Txoj kev tshawb no tau tshuaj xyuas txog 601 niam txiv thiab menyuam yaus hauv rau lub nroog Canadian, 41% ntawm cov neeg nyob hauv thaj chaw muab cov dej fluoridated los ntawm cov tub ceev xwm hauv nroog.

Cov kws tshawb fawb tau sau tseg tias txhua qhov kev nce ntxiv ntawm cov tshuaj fluorine hauv cov zis ntawm cov poj niam cev xeeb tub los ntawm ib milligram ib liter tau cuam tshuam nrog 4,5-point txo qis hauv IQ hauv cov tub hluas hnub nyoog ntawm peb thiab plaub xyoos, tab sis tsis yog rau cov ntxhais.

Kev noj tshuaj fluorine uas leej niam noj txhua hnub ntau dua li qhov tso zis, cov kws tshawb fawb tau sau tseg tias txhua qhov nce ntawm ib milligram yog txuam nrog qhov txo qis ntawm 3,7 cov ntsiab lus hauv IQ ntawm ob tus tub thiab ntxhais.

Txawm li cas los xij, ntau tus kws tshaj lij hauv ntau yam xws li kev txheeb cais thiab toxicology mus rau neuroscience, tau thuam txoj kev tshawb no.

Stuart Ritchie, tus kws paub txog kev puas siab puas ntsws ntawm King's College London tau hais tias "Kuv xav tias qhov kev txiav txim siab tsis txaus thiab txwv," Tej zaum nws yuav yog ib qho tseem ceeb hauv ntau txoj kev tshawb fawb txog qhov teeb meem no, tab sis nws ib leeg tsis tuaj yeem sib cav txog qhov txaus ntshai ntawm fluorine. "

Hauv kev cia siab ntawm qhov kev tsis sib haum xeeb, Gamma Pediatrics tau tshaj tawm cov lus qhia txawv txawv uas nws tau hais tias kev tshaj tawm txoj kev tshawb fawb tsis yog qhov kev txiav txim siab "yooj yim".

Kev koom tes rau kev txo qis ntawm cov hniav lwj hauv Tebchaws Meskas, ntxiv fluorine rau hauv dej yog ib qho ntawm XNUMX txoj kev noj qab haus huv zoo tshaj plaws ntawm lub xyoo pua XNUMXth, raws li Lub Chaw Tiv Thaiv thiab Tiv Thaiv Kab Mob (CDC).

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