Kwa zaka zopitirira khumi, anthu akhala akukangana za momwe foni yamakono imakhudzira thanzi. Kuyambira zaka zapakati pa 90ties, zotsatira zafukufuku zatsimikizira kuti kugwiritsa ntchito foni kumayambitsa kusintha kwakukulu kwa thanzi komanso kukana kwa maphunzirowa, omwe amakonzedwa ndi asayansi omwewo. Mpaka lero, palibe mfundo yomalizira yomwe ingatsimikizire kapena kusatsutsa zovulaza pogwiritsa ntchito foni yam'manja.
Panthawi yomwe zatsimikiziridwa kuti mavuto ena kuchokera ku mafoni apakanema akadalipo. Kwenikweni zimakhudzana ndi magetsi opangira magetsi omwe foni imapanga pandekha, komanso zipangizo zina zomwe zimagwiritsa ntchito magetsi - TV, firiji, uvuni wa microwave ndi zina zotero. Komabe, zoona zake n'zakuti foni nthawi zambiri imakhudza kwambiri ndi mutu wathu, zomwe zimapangitsa kuti zisokonezeke pamtundawu pa zamoyo ndi dongosolo lalikulu. Malinga ndi kafukufuku wina, mtundu uwu wa ma radiation umakhala wovulaza kwambiri kwa anthu, makamaka chifukwa zotsatira za zotsatira zake siziwoneka kwa nthawi yaitali, popeza n'zovuta kuona chikoka chomwe chimakhudza chiwalo chovuta komanso chovuta monga ubongo wathu, thupi la munthu.
Kawirikawiri, foni yam'manja imakhudza osati mutu wa munthu wokha, komanso thupi lonse lathunthu, popeza ambirife timakhala ndi foni nthawi zonse, nthawi zina ngakhale usiku, timakhala ndi mantha. Choncho, chifukwa chakuti pafupi ndi ife pafupi ndi nthawi zonse nthawi zonse timakhala ndi magetsi osokoneza mphamvu, thupi lathu likuwonjezeka pangozi.
Zomwe zimagwirizana kwambiri ndi kuwala kwa magetsi kumagetsi ndi ana. Chifukwa mafupa awo, kuphatikizapo mafupa a chigaza, ndi ochepa kuposa mafupa a zigaza za anthu akuluakulu, sangathe kuchepetsa ma radiation owopsa, komanso chifukwa chaling'ono (kachiwiri poyerekezera ndi akulu) kulemera kwake SAR kwa iwo ikhoza kukhala zochuluka kwambiri kuposa kulingalira.
SAR (yomwe imatanthauza Chisamaliro Chotsimikizirika) ndi chisonyezero cha kutentha kwa dzuwa komwe kumapangitsa mphamvu ya munda yomwe imatulutsidwa mu thupi la munthu mu nthawi yofanana ndi yachiwiri. Pogwiritsa ntchito njirayi, ofufuza amatha kudziwa momwe foni yamakono imakhudzira thupi la munthu. Amayesedwa mu watts pa kilogalamu imodzi. Mtengo wa magetsi oyendetsa magetsi ndi ma Watchi awiri pa kilogalamu iliyonse.
Ofufuza a European Union asonyeza kuti kutentha kwa dzuwa, komwe kuli muyezo wa SAR wokwana 0.3 mpaka 2 watts pa kilogalamu, kukhoza kuwononga ngakhale DNA mu mphamvu.
Asayansi, atafufuza ana opitirira khumi zikwi khumi, atsimikiza kuti kugwiritsa ntchito mafoni a m'manja nthawi zambiri pa nthawi yomwe ali ndi mimba kumakhudzanso thanzi la mwana wamtsogolo.
Pali zotsatira zodziwika bwino za kafukufuku wa Dr. J. Highland wochokera ku yunivesite ya Warwick, Great Britain. Amanena kuti mafoni a m'manja sakhala otetezeka, makamaka omwe angayambitse matenda ogona, kulephera kukumbukira komanso mavuto ena azaumoyo. Amanenanso kuti izi zimakhudza ana kwambiri, chifukwa chitetezo cha mthupi chawo sichingatheke kuposa cha anthu akuluakulu.
Kuwonjezera apo, utsogoleri wa kafukufuku wa Pulezidenti wa ku Ulaya unapereka lipoti lovomereza kuti mayiko onse a European Union amaletsa kugwiritsa ntchito mafoni a m'manja ndi anthu osakwanitsa zaka. Malingana ndi lipoti lawo, kugwiritsira ntchito mafoni a m'manja kungalepheretse chitukuko cha mwanayo, komanso kumakhudzanso zotsatira zake ku sukulu. Phunziroli, zotsatira za zomwe zinaphatikizidwa mu lipoti, asayansi ochokera ku yunivesite ya Warwick, bungwe la British of Independent Experts ndi German Institute of Biophysics.
Ku UK, palinso kuletsa kugulitsa mafoni a m'manja kwa anthu osasinkhuka. Komanso, ana osakwana zaka zisanu ndi zitatu amaletsedwa kugwiritsa ntchito mafoni.