Tarihin lokaci na zamani yana nufin ainihin lokacin da mutumin ya kasance da rai. A wasu kalmomi, yawan kwanakin, watanni ko shekaru da mutum ke da rai ba ya canzawa , komai lafiyar salon rayuwa - ko da wanda ya cike da babban motsa jiki da abinci mai kyau - suna rayuwa.
Kowane mutum yana da shekaru daban daban. Wasu mutane suna ganin sun tsufa sosai, yayin da wasu suka tsufa a wani lokaci mai zurfi.
Dukkanmu mun gamu da saduwa da wani don karo na farko wanda ya nuna cewa ya kasance mafi ƙanana - ko mazan - fiye da su.
Bambanci tsakanin Tarihin Tarihin Halitta da Halittu
A matsayin 'yan adam, muna da shekaru daban-daban: tarihin lokaci da kuma nazarin halittu . Tarihin tarihin zamani shine yawan shekarun da mutum yake da rai, yayin da shekarun zamani yana nufin shekarun mutum. Shekaru na rayuwa, wanda ake kira a matsayin shekaru masu ilimin lissafi, yana dauke da abubuwa masu yawa a rayuwa, ciki har da abinci, motsa jiki da halaye na barci, don sunaye wasu.
Yaya muke da shekaru ba ta da iko. Hakanan ya shafi rinjaye, amma bincike na kwanan nan ya nuna haske game da yadda tsofaffi zai iya tasiri daga abubuwan waje, ciki har da abinci, motsa jiki, danniya, da shan taba. Mutane da yawa masu aikin gerontologists sun yi imani da cewa shekarun zamani ba su cika ba saboda bazai kula da waɗannan abubuwan waje ba.
Yaya aka ƙayyade Halitta Aiki?
Bincike ya nuna cewa telomeres da DNA methylation suna wasa manyan sassa cikin tsarin tsufa.
Telomeres sune nucleotides a kan iyakar chromosomes. Suna kiyaye iyakar chromosomes daga ci gaba da cike tare da chromosome na kusa. Mahimmanci, telomeres ya yi bayani game da yadda kwayoyin jikinsu ke daɗewa kuma suka mutu.
Masana kimiyya sun gano cewa mafi girman yanayin tarihin mutum, wanda ya fi guntu da telomeres.
Ɗaya daga cikin binciken ya gano cewa mutanen da ke da ƙwayar telomeres sun fi saurin mutuwa ko kuma ci gaba da cutar ko cutar neurodegenerative. Wani binciken kuma ya nuna cewa ci gaba da rayuwa mai kyau za ta iya yin watsi da tsufa ta hanyar tsallewa telomeres, labarai mai kyau ga al'amuran mu na shekaru.
Masana kimiyya suna amfani da DNA methylation don sanin shekarun halitta. Sel na amfani da DNA methylation don sarrafa jigon halittar mutum. A wasu kalmomin, DNA methylation juya kwayoyin kashewa. Kodayake ainihin dalili na amethylation ba'a san shi ba, yana da muhimmanci ga cigaba da haihuwa, jigilar kwayoyin halittu, zaman lafiyar chromosome da sauransu.
Ɗaya daga cikin binciken da ake nema gano ko DNA methylation shine hanyar da ta dace ta tsinkaya shekaru ta tara wasu samfurori 8,000 na kyallen takarda da sel guda 51. Yawancin samfurori da samfurori da aka yi nazari sunyi daidai da shekarun zamani da na zamani. Wasu basuyi ba. Nazarin ya gano cewa wasu sassa na jiki sun fi sauri fiye da sauran. Alal misali, ƙirjin nono shine wasu daga cikin tsofaffi cikin jiki. Binciken ya gano cewa koda jikin jikin nono mai lafiya zai iya zama kamar shekaru uku da suka fi ƙarfin jikin mace. Idan kullun lafiya na ciki yana kusa da nama mai laushi, yana da shekaru 12 da haihuwa .
Idan kana sha'awar nazarin nazarin halittu, haɓaka kanka tare da RealAge , hanya mai ban sha'awa.
> Sources:
> http://www.healio.com/optometry/low-vision-geriatrics/news/print/primary-care-optometry-news/%7B94d8411e-1cad-4070-b7b5-576f058645e7%7D/look-beyond-a- marasa lafiya-lokaci-lokaci
> http://www.medicaldaily.com/human-bodys-chronological-and-biological-age-may-differ-why-your-breast-tissues-are-326884