Iminyaka yokulandelana ibhekisela kwisixa esithile umntu esaphila. Ngamanye amazwi, inani leentsuku, iinyanga okanye iminyaka umntu ephilayo ayitshintshi , kungakhathaliseki ukuba impilo yempilweni - nokuba yinto epheleleyo yokuzaliswa kwemisebenzi kunye nokutya okunomsoco - bahlala.
Wonke umntu udala kwizinga elifaniyo. Abanye abantu babonakala bekhula ngokukhawuleza, ngelixa abanye beguga ngokukhawuleza.
Sonke sihlangene nokudibana nomntu ngethuba lokuqala obonakala elula kakhulu-okanye ekhulile-kunokuba ayenjalo.
Umehluko phakathi kwexesha lexesha lexesha lezinto eziphilayo
Njengabantu, sineminyaka emibili eyahlukileyo. Iminyaka yobudala yimizuzu yeminyaka umntu uphila, ngelixa ubudala bendalo bubhekisela kumntu omdala obonakala ngathi . Iminyaka yezinto eziphilayo, ekubhekiselwe kuzo njengeminyaka yobudala, ithatha iimeko ezininzi zokuphila, kubandakanya ukutya, ukuzivocavoca nokulala, ukubiza amagama ambalwa.
Indlela esibudala ngayo ingaphezu kokulawula kwethu. Ngokuyinqobo kuthonywe yi-genetics, kodwa uphando olutshanje luchaza indlela ukuguga kunokuchaphazeleka ngayo izinto zangaphandle, kubandakanywa ukutya, ukuzivocavoca, uxinzelelo kunye nokutshaya. Uninzi lwabadlali be-gerontologists bakholelwa ukuba ixesha lokubala liba ngumntu ongaphelelanga ngenxa yokuba ayithathi ingqalelo ezi zinto zangaphandle.
Indlela Ubomi Bokuphila Ngokwemvelo Oya Kuchongwa ngayo
Uphando lubonisa ukuba i- telomeres kunye ne- DNA methylation badlala amanqaku amaninzi kwinkqubo yokuguga.
I-Telomeres ziyi-nucleotides kwiziphelo zama-chromosomes. Zigcina iipheromenti zama-chromosomes ukuba zihlahloke kwaye zisebenzise i-chromosome esondeleyo. Okubalulekileyo, i-telomeres icacisa ngokukhawuleza ukuba iiseli zidala kwaye zife.
Iingcali zenzululwazi ziye zafumanisa ukuba ukuphakama kwexesha lomntu, i-shortom telomeres.
Olunye uphando lwafumanisa ukuba abantu abanama-telomere amancinci bekunokwenzeka ukuba baswele ukufa okanye bahlakulele isifo okanye ingxaki ye-neurodeergenerative. Olunye uphando lubonisa ukuba ukugcina impilo enempilweni kunokunyusa ukuguga ngokunyusa i-telomeres, iindaba ezilungileyo zenkcubeko yethu enenkqubela phambili.
Iingcali zenzululwazi zisebenzisa kwakhona i- DNA methylation ukufumana iminyaka yobudala. Amaseli asebenzisa i-DNA methylation ukulawula ukuthetha kwegazi. Ngamanye amazwi, i-DNA methylation iguqula izakhi zofuzo. Nangona injongo echanekileyo ye-methylation ingaziwa, kubalulekile ekuphuhlisweni kwe-embryonic, i-genomic imprinting, ukuzinza kwe-chromosome nokunye.
Olunye uphando lwafuna ukufumanisa ukuba i-DNA methylation yindlela echanekileyo yokuqikelela iminyaka ngokuqokelela iisampuli eziyi-8,000 zama-tissue kunye neeseli ezingama-51. Uninzi lwezicubu kunye neesampula zeeselulwazi zafundwa zinexesha elifanayo lexesha lezinto eziphilayo. Abanye babengazange. Uphononongo lufumene ukuba ezinye iinxalenye zomzimba zihamba ngokukhawuleza kunabanye. Ngokomzekelo, izicubu zesifuba zingenye zezicubu ezindala emzimbeni. Uphando lwafumanisa ukuba nokuba izifo zesifuba ezinempilo zingabaneminyaka emithathu ubudala kunomnye umzimba womfazi. Ukuba izicubu zesifuba esempilweni zikhona kufuphi nezicubu zomhlaza, uneminyaka engama-12 ubudala .
Ukuba unomdla ekuhloliseni ubudala be-biological, qhelana no- RealAge , isibonelelo esilungileyo sexesha elide.
> Imithombo:
> http://www.healio.com/optometry/low-vision-geriatrics/news/print/primary-care-optometry-news/%7B94d8411e-1cad-4070-b7b5-576f058645e7%7D/look-yond-a- izigulane-ubudala bexesha
> http://www.medicaldaily.com/human-bodys-chronological-and-biological-age-may-differ-your-your-breuss-essues-are-326884