Akatswiri atchula mankhwala 12 omwe amachepetsa milingo ya IQ mwa ana, kuchititsa chidwi chambiri, komanso kuyambitsa autism pakukula kwa mwana. Zinthuzi sizipezeka m’malo mokha, komanso m’zinthu zapakhomo monga mipando ndi zovala. Asayansi akuda nkhawa kwambiri ndi mfundo yakuti ana padziko lonse lapansi amakhudzidwa ndi mankhwala oopsa, kuopsa kwake sikudziwika ndi boma.
Ana akuchulukirachulukira kuti ali ndi chidwi akusowa hyperactivity matenda, ndi neurobehavioral kakulidwe matenda amapezeka mu 10-15% wa akhanda. Subclinical kuchepa kwaubongo kumakhala kofala kwambiri. Komanso, chibadwa zinthu zimayambitsa chisokonezo mu 30-40% ya milandu.
Philip Grandjin (Harvard Bellinger College) ndi Philip Landrigan (Mount Sinai School of Medicine, Manhattan) amakokera chisamaliro ku mfundo zimenezi m’maphunziro awo. Amanena kuti zinthu zachilengedwe zimakhudzidwa ndi zomwe zimayambitsa, nthawi zina kuphatikiza ndi majini. Ndipo amatchulanso umboni wosonyeza kuti mankhwala omwe amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana amathandiza kuti pakhale mliri wa “chete” wa matenda a psychomotor.
Amaphatikizapo mankhwala oopsa kwambiri a neurotoxin:
- methylmercury,
- polychlorinated biphenyls (PCBs),
- ethanol,
- kutsogolera,
- arsenic,
- toluene,
- manganese,
- fluorine,
- chlorpyrifos,
- tetrachlorethylene,
- polybrominated diphenyl ethers (PBDE),
- dichlorodiphenyltrichloroethane.
Inde, sizobisika kuti mankhwala ambiri omwe ali pamndandandawu ndi oopsa. Funso ndilakuti timakumana nazo kangati komanso ngati timazilamulira. Ndipo zotsatira za kulumikizana koteroko sizimawerengedwa nthawi zonse komanso zodziwikiratu. Mwachitsanzo, kutsogolera munalipo mu petulo, penti komanso zoseweretsa za ana kwa zaka zambiri asayansi asanazindikire zotsatira zake zoipa pa anthu.
Zamadzimadzi zothandiza pa mlingo wochepa: zimathandiza kupewa kuwola kwa mano komanso kulimbitsa mafupa. Komabe, pamlingo waukulu, zimayambitsa zotupa za mano ndi mafupa ndipo zimakhudza kwambiri kukula kwa ubongo. Koma, ndithudi, izi siziri za mankhwala otsukira mano.
Zodetsa nkhawa kwambiri zozimitsa moto Ndi gulu la mankhwala omwe amadziwika kuti PBDEs. Mankhwalawa anayamba kugwiritsidwa ntchito m’malo mwa ma PCB oletsedwa. Pofika nthawi yomwe adapezeka kuti amayambitsa khansa ndikufooketsa chitetezo cha mthupi, kubereka, mantha ndi endocrine, adagwiritsidwa ntchito muzinthu mazana ambiri, monga mapulasitiki ndi mphira. Opanga asintha kukhala ma PBDE. Komabe, zatsimikiziridwa kale kuti ma PBDE, omwe amagwiritsidwa ntchito powotcha mipando, amachepetsa IQ komanso kukula kwa malingaliro pang'onopang'ono.
Ndipotu palibe kholo limene lingateteze ana awo ku poizoni zimenezi. Ndipo samatulutsidwa ndi thukuta ndipo amakhalabe m'thupi kwa nthawi yayitali. Pafupifupi gawo limodzi mwa magawo atatu a kagayidwe kachakudya cholinga chake ndikuonetsetsa kuti ubongo umagwira ntchito bwino. Kuti azitha kudziwa zambiri, mabiliyoni ambiri azinthu zamagetsi amadutsa pakati pa ma neuron. Njirayi ndi yovuta kwambiri moti ubongo umagwiritsa ntchito ma calories 10 pa kilogalamu kuposa ziwalo zina zonse za thupi.
Ubongo wambiri ndi ma neuroni ake 86 biliyoni amapangidwa m’miyezi ingapo yoyambirira ya moyo wa mwana wosabadwa, m’mimba. Kuti ubongo ukule bwino, ma neuron amayenera kufola motsatira dongosolo lomwe limayendetsedwa ndi mahomoni ndi ma neurotransmitters, koma ma neurotoxin amatha kugwetsa ma cell. Kumayambiriro kwa moyo, ngakhale zisonkhezero zazing'ono zakunja zimatha kubweretsa kuwonongeka kosasinthika kwa ubongo, zomwe sizingakhale ndi zotsatirapo kwa munthu wamkulu.
Zoyenera kuchita? Akatswiri, kuphatikiza omwe tawatchulawa a Philip Grandjin, amalangiza kudya zinthu zakuthupi, zomwe ndi zazikulu / zopangidwa ndi mankhwala ochepa kapena opanda mankhwala, makamaka kwa amayi apakati. Werengani zambiri za poizoni m'nkhani ya The Atlantic.