Sayansi Imatsimikizira Kukhala Olimba Kuli M'manja Mwanu Omwe

Zamkati

• Onaninso za

Kugwira ntchito molimbika kungakufikitseni patali - osachepera, ndi zomwe sayansi yakhala ikutiuza kwa zaka zambiri. Mukamalimbikira ntchito, mudzakhala athanzi komanso athanzi, koma ofufuza akhala akuvutika kuti awonetse kuti kuchita masewera olimbitsa thupi kumayambitsa kusintha kwakanthawi mthupi lathu komanso muubongo. Chifukwa cha mitundu yambiri, monga chibadwa ndi momwe adaleredwera, oyandikira kwambiri omwe angabwere ndikuwonetsa kuyanjana-kapena lingaliro loti anthu omwe amachita masewera olimbitsa thupi amakhala athanzi, osati machitidwewo zimayambitsa kusintha kwaumoyo.

Koma chifukwa cha kusintha kwa zinthu zosiyanasiyana, ofufuza aku Finland ayandikira kwambiri kuposa kale lonse kutsimikizira kuti zolimbitsa thupi zimakhudza thanzi lathu komanso thanzi lathu makamaka pazachilengedwe, zakudya, ndi majini. Zosiyana ndi zomwe adapeza? Amapasa ofanana.

Mwakutanthauzira, mapasa ali ndi DNA yemweyo ndipo, poganiza kuti adaleredwa limodzi, zizolowezi zomwezo kuyambira adaleredwa. Asayansi ku yunivesite ya Jyvaskyla anayang'ana mapasa ofanana ali aang'ono omwe adachita masewera olimbitsa thupi mosiyana kwambiri atachoka kunyumba kwawo ali ana. (Chochititsa chidwi, izi zinali zovuta kupeza-awiriawiri ambiri mu nkhokwe yamapasa a Finnish adagawana machitidwe ochita masewera olimbitsa thupi, ngakhale akukhala motalikirana.)

Zotsatira? Genetics inali chinthu chokhacho chofanana chomwe chatsalira pakati pa ziwirizi. Pongoyambira, mapasa osagwira ntchito anali ndi mphamvu zochepa, kapena kuthekera kwa thupi lanu kugwira ntchito molimbika kwa nthawi yayitali. Abalewo ankangokhala ndi mafuta ochulukirapo (ngakhale anali ndi zakudya zofananira) ndipo adawonetsa kukana kwa insulin, kutanthauza kuti matenda ashuga asanakhalepo mtsogolo. (Onani zina mwa zizolowezi zoyipa zitatu zomwe zingawononge thanzi lanu mtsogolo.)

Ndipo kusiyanako kudapitilira thupi: Amapasa omwe sanagwire nawo ntchito analinso ndi imvi (minofu ya muubongo yomwe imakuthandizani kusanthula zambiri) kuposa m'bale wawo wokonda thukuta. Izi zinali zodziwika bwino makamaka m'malo am'magazi omwe amakhudzidwa ndikuwongolera magalimoto, kutanthauza kuti kulumikizana kwawo kwa minofu kunali kotsika poyerekeza ndi kwam'banja lawo.

Popeza awiriwa anali ndi chibadwa chofananira komanso zizolowezi zofanana mpaka zaka zochepa zapitazo, izi zikusonyeza kuti kuchita masewera olimbitsa thupi kumatha kukhudza thupi lanu, thanzi lanu, ndi ubongo wanu munthawi yochepa.

Kuonjezerapo-ndipo mwinanso chofunikira kwambiri pakusiyanitsa pakati pa mapasa achangu ndi osagwira ntchito akuwonetsanso kuti majini alibe mawu omaliza oyenera kukhala okonzeka, anatero wolemba maphunziro Urho Kujala. (Kodi Makolo Ayenera Kuimbidwa Mlandu Pazochita Zanu Zolimbitsa Thupi?) Ndiko kulondola, sayansi yatsimikizira kuti zonse zomwe mungathe zili m'manja mwanu - choncho pitirizani!

Onaninso za