Umboni wochulukirapo mwa anthu wosintha zomwe zimawonedwa ndi nyama - adayankha chisangalalo kuchokera kukakokomeza. Kutsika kwa ntchito yamalipiro yokhudzana ndi kuchepa kwa dopamine. Izi ndi zomwe zikuchitika ndi zolaula - koma palibe amene amawerenga.
Kulemera kwa Thupi Kumayang'ana Kusintha Maganizo a Ubongo kwa Chakudya
Pakapita nthawi kudya mopitirira pang'onopang'ono kumene anthu amamanga-mu mphoto machitidwe akatswiri amasonyeza
Mwa Jenifer Goodwin
HealthDay Reporter
LACHISANU, Disembala 10 (HealthDay News) - Anthu ambiri mwina amawona kumwa mkaka wa mkaka ndichosangalatsa, nthawi zina chimakhala chonchi. Koma mwachiwonekere sizoyenera kukhala choncho pakati pa omwe ali onenepa kwambiri kapena onenepa kwambiri.
Kudya kwambiri, zikuwoneka kuti, kupweteka kwa mitsempha pamagwiritsa ntchito zakudya monga milkshakes, maphunziro atsopano amasonyeza. Yankholo limapangidwa mumutu wa ubongo, dera lomwe likukhudzana ndi mphotho.
Ofufuza pogwiritsa ntchito maginito opanga maginito (fMRI) amapeza kuti anthu olemera kwambiri ndi olemera kwambiri amasonyeza zochepa zomwe amachita muderali pamene akumwa mkaka kusiyana ndi anthu olemera.
"Kukwezeka kwa BMI [thupi lanu], kumachepetsa mayankho anu mukamadya mkaka," anati wolemba wotsogolera Dana Small, pulofesa wothandizirana ndi zamisala ku Yale komanso mnzake wothandizana naye ku yunivesite ya John B. Pierce Laboratory.
Zotsatira zake zinali zolimba makamaka kwa akuluakulu omwe anali ndi mtundu wina wa taqia A1, yomwe yakhala ikugwirizanitsa ndi chiopsezo chokwanira kwambiri. Mwa iwo, Small anati, kuchepa kwa ubongo ku mkaka wa mkaka kunatchulidwa kwambiri. Pafupifupi gawo limodzi mwa magawo atatu a ku America ali ndi kusiyana.
Zomwe anapezazo zinaperekedwa kale sabata ino ku msonkhano wa American College of Neuropsychopharmacology ku Miami.
Zomwe zimanenedwa pazifukwa zomwe anthu amadya kwambiri kapena chifukwa chake ma dieters akuti ndizovuta kunyalanyaza zakudya zopindulitsa sizimveka bwino. Koma ofufuzawo ali ndi malingaliro ena.
Atafunsidwa momwe amasangalalira kuti apeza mkaka wa mkaka, onenepa kwambiri komanso onenepa kwambiri omwe aphunzira nawo adayankha m'njira zomwe sizinasiyane kwambiri ndi omwe ali ndi gawo lolemera, akunena kuti malongosoledwewo si akuti anthu onenepa samakondweretsanso mkaka pang'ono kapena pang'ono .
Ndipo atapanga ubongo ku ana omwe ali pachiopsezo cha kunenepa kwambiri chifukwa makolo onse anali olemera kwambiri, ochita kafukufukuwa adapeza zosiyana ndi zomwe adazipeza pa anthu akuluakulu olemera kwambiri.
Ana omwe ali pachiopsezo cha kunenepa kwambiri anali ndi mayankho owonjezereka kwambiri powagwiritsira ntchito mkaka, poyerekeza ndi ana omwe saganiziridwa kuti ali pangozi yowonongeka chifukwa anali ndi makolo oonda.
Akatswiriwa adanena kuti zomwe zimapangitsa kuti anthu ayambe kuchita zimenezi, zimakhala zochepa chifukwa chodya mopitirira muyeso.
"Kuchepa kwa kuyankha modandaula sikumayambitsa kunenepa, kumatsatira," adatero Small. "Izi zikusonyeza kuti kuchepa kwa mayankho kumachitika chifukwa chodya mopitilira muyeso."
Kafukufuku mu makoswe alinso ndi zotulukapo zofananira, atero a Paul Kenny, pulofesa wothandizira pantchito yoletsa matenda ndi maselo a neuroscience ku Scripps Research Institute ku Jupiter, Fla.
Pamene makoswe anapatsidwa mwayi wokondweretsa kwambiri, chakudya chopindulitsa kwambiri kwa nthawi yaitali, iwo adakula kwambiri. Mafuta omwe iwo ali nawo, makamaka momwe amachitira muzipangizo zawo za ubongo zinachepa.
"Popita nthawi, machitidwe a mphotho adayamba kuchepa," adatero Kenny. “Iwo sanali kugwira bwino ntchito. Tikuganiza kuti zoterezi mwina zikuchitikanso mwa anthu. ”
"Mukadutsa m'moyo wanu ndikupitilizabe kudya zakudya zokoma izi, mukuwonjezera mphamvu yanu yolandirira ubongo," adalongosola. "Popita nthawi, dongosololi limalimbananso, ndipo limadziyimbira lokha - ndichifukwa chake kukwera kwa BMI, ndizochepera zomwe mumawona mdera lamalipiro."
Mwazina, gawo lamkati laubongo limakhudzidwa ndikuwongolera kusakhazikika, komwe kumakhudzana ndi kudziletsa, komanso zizolowezi zosokoneza bongo, Small adazindikira.
"Caudate ndi dera laubongo lomwe limalandira dopamine," adatero. “Zomwe ubongo uwu ungatanthauze ndikuti kudya mopitirira muyeso kumayambitsa kusintha kwa dongosolo la dopamine, zomwe zingapangitse chiopsezo china chodya kwambiri. ”
Funso la ma dieters, ndiye, ngati yankho la caudate lingabwezeretsedwe kukhala labwino ngati angachepetse thupi. Ofufuzawo adati sakudziwa koma adakonza zoyesa izi.
Kafukufuku mwa anthu omwe ali ndi zizolowezi zina akusonyeza kuti, popita nthawi, pakhoza kukhala kuti ena abwerera kuzolowera pakukonzekera mphotho zaubongo koma mwina osabwereranso komwe mudayambira, Kenny adati.
Phunziro lachiŵiri lomwe liyenera kuperekedwa pamsonkhanowu lapeza kuti ubongo wa anthu okhwimawo amavomereza mosiyana ndi ubongo wa anthu olemera omwe amayembekezera chakudya kapena malipiro a ndalama ndi chilango.
Anapeza kuti anthu olemera kwambiri amasonyeza mphamvu zokhudzana ndi ubongo ku malipiro oyembekezerapo ndi zochepa zowonongeka za zotsatira zovuta kuposa anthu olemera. Phunziroli linachitidwa ndi ofufuza a University of Kansas Medical Center.
Chifukwa choti zomwe anapeza kuchokera ku maphunziro awiriwa ziyenera kuperekedwa pamsonkhano wa zachipatala, ziyenera kuwonedwa ngati zoyambirira kufikira zitasindikizidwa m'magazini yowonedwa ndi anzawo.
Pafupifupi a 30 peresenti ya anthu a ku United States amawerengedwa kuti ndi ochepa, ndipo zotsatira zachipatala zomwe zimagula ndalama zoposa $ 100 biliyoni pachaka, adatero Dr. Nora Volkow, yemwe ndi mkulu wa bungwe la US National Institute on Drug Abuse komanso katswiri wa matenda ozunguza bongo.
Chimodzi mwa zifukwa zazikulu zomwe zinayambitsa kunenepa kwambiri, anati, ndi kupezeka kosalekeza kwa "chakudya chopindulitsa kwambiri" chomwe, chimadyedwa pafupipafupi, chimatha kusintha mphotho yaubongo.
Volkow anati: "Zikudziwikiratu kuti ubongo umagwira ntchito yayikulu pakunenepa kwambiri komanso kudya mopitirira muyeso."
Zambiri
Maofesi a US ku Mafupa ndi Kuteteza Matenda ali ndi zambiri pa kunenepa kwambiri.
SOURCES: Dana Small, Ph.D., pulofesa wothandizira, wodwala maganizo, ndi mnzake, John B. Pierce Laboratory, University Yale, New Haven, Conn .; Nora Volkow, MD, mkulu, bungwe la US National Institute of Drug Abuse, Bethesda, Md .; Paul J. Kenny, Ph.D., pulofesa wothandizira, labotale ya khalidwe ndi maselo a ubongo, Scripps Research Institute, Jupiter, Fla .; zochitika, msonkhano wa American College wa Neuropsychopharmacology, Dec. 5-9, 2010, Miami