Ochwepheshe baqambe amagama amakhemikhali ayi-12 anganciphisa amazinga e-IQ ezinganeni, abangele ukungasebenzi kahle kokuphazamiseka kwengqondo, futhi avuse i-autism ngesikhathi sokukhula kwengane. Lezi zinto azitholakali emvelweni kuphela, kodwa nasezintweni zasendlini ezifana nefenisha nezingubo. Ososayensi bakhathazeke kakhulu ngeqiniso lokuthi izingane emhlabeni jikelele zichayeke kumakhemikhali anobuthi, ingozi yawo engaziwa ngokomthetho nguhulumeni.
Izingane ziya ngokuya zitholakala zinenkinga yokunganakekelwa kokungasebenzi kahle kwengqondo, futhi kuthinteka ukuphazamiseka kokuthuthuka kokuziphatha ku-10-15% wezinsana ezisanda kuzalwa. Ukwehla kokusebenza kobuchopho okuncane kakhulu kuvame kakhulu. Ngaphezu kwalokho, izici zofuzo zibangela ukuphazamiseka okunjalo kuphela kuma-30-40% wamacala.
UPhilip Grandjin (Harvard Bellinger College) noPhilip Landrigan (Mount Sinai School of Medicine, eManhattan) badonsela ukunakekela kulawa maqiniso ezifundweni zabo. Basikisela ukuthi izici zemvelo zibandakanyeka ekubangeni, kwezinye izimo kuhlanganiswe nezici zofuzo. Futhi bacaphuna ubufakazi bokuthi amakhemikhali asetshenziswa kabanzi izimboni ezahlukahlukene adlala indima ekuqhamukeni kwesifo “esithule” sokuphazamiseka kwengqondo.
Kubandakanya amakhemikhali ayingozi kakhulu e-neurotoxin:
- i-methylmercury,
- ama-biphenyls anama-polychlorinated (PCBs),
- ethanol,
- ukuhola,
- i-arsenic,
- i-toluene,
- i-manganese,
- i-fluorine,
- i-chlorpyrifos,
- i-tetrachlorethylene,
- i-polybrominated diphenyl ethers (PBDE),
- i-dichlorodiphenyltrichloroethane.
Vele, akuyona imfihlo ukuthi amakhemikhali amaningi kulolu hlu anobuthi. Umbuzo uthi sihlangana nabo kangaki nokuthi siyayilawula yini. Futhi imiphumela yalabo oxhumana nabo ayikaze ifundwe njalo futhi ibikezelwe. Ngokwesibonelo, kuholele yayikhona ngophethiloli, opende bepende ngisho namathoyizi ezingane amashumi eminyaka ngaphambi kokuba ososayensi babone imiphumela emibi yabo kubantu.
I-fluorine ilusizo kumithamo ephansi: kuyasiza ukuvimbela ukubola kwamazinyo nokuqinisa amathambo. Kodwa-ke, ngemithamo ephezulu, ibanga izilonda zamazinyo namathambo futhi kuthinta kabi ukukhula kobuchopho. Kepha, kunjalo, lokhu akukhona mayelana nomuthi wokuxubha.
Ngokukhathazeka okukhulu abacisha umlilo Iqembu lezinhlanganisela ezaziwa ngokuthi ama-PBDE. Lawa makhemikhali aqala ukusetshenziswa esikhundleni sama-PCB avinjelwe. Ngesikhathi zitholakala ukuthi zibangela umdlavuza futhi zenza buthaka isimiso somzimba sokuzivikela ezifweni, zokuzala, zezinzwa ne-endocrine, zase zisetshenziswa emikhiqizweni engamakhulu, njengamapulasitiki nenjoloba. Abakhiqizi bashintshele kuma-PBDE. Kodwa-ke, sekuvele kufakazelwe ukuthi ama-PBDE, asetshenziselwa ukushisa ifenisha, ukunciphisa i-IQ nokuthuthukiswa kwengqondo kancane.
Eqinisweni, akekho umzali ongavikela izingane zakhe kulezi zinyosi. Futhi azikhishwa ngomjuluko futhi zihlala emzimbeni isikhathi eside. Cishe ingxenye yesine yemetabolism ihlose ukuqinisekisa nokugcina ukusebenza kobuchopho. Ukuze kucutshungulwe ngisho nokwaziswa okuyisisekelo, kudlula izigidigidi zezimpawu zamakhemikhali phakathi kwezinzwa. Le nqubo iyinkimbinkimbi kangangokuba ubuchopho busebenzisa ama-calories aphindwe kayishumi ekhilogremu ngalinye kunezinye izitho emzimbeni.
Iningi lobuchopho nezinzwa zalo eziyizigidi eziyizinkulungwane ezingama-86 zakheka ezinyangeni ezimbalwa zokuqala zempilo yengane engakazalwa, esibelethweni. Ukuze ubuchopho bukhule kahle, ama-neurons kufanele afole ngokulandelana ngqo ngaphansi kwethonya lamahomoni nama-neurotransmitters, kepha ama-neurotoxins angawaqongqotha amaseli. Ezigabeni zokuqala zempilo, ngisho namathonya amancane angaphandle angaholela ekulimaleni okungenakulungiseka ebuchosheni, obekungeke kube nemiphumela kumuntu omdala.
Okufanele ngikwenze? Ochwepheshe, kuhlanganise noPhilip Grandjin okukhulunywe ngaye ngenhla, batusa ukudla imikhiqizo ephilayo, okungukuthi, ekhulile / ekhiqizwa ngezibulala-zinambuzane ezincane noma ezingekho nhlobo, ikakhulukazi kwabesifazane abakhulelwe. Funda kabanzi mayelana nobuthi esihlokweni se-Atlantic.