Zamanci yana nufin "yadda ake girma da haihuwa." An bayyana shi azaman lokacin da aka raguwa da sauri wanda ya bi lokacin ci gaba a cikin rayuwar kwayoyin. Sabili da haka tunanin mutum zai fara wani lokaci a shekarunka 20, a gwargwadon ƙarfin jikinka, kuma ci gaba ga sauran rayuwanka.
Kalmar "senescence" ta samo daga kalmar Latin senex, ma'ana "tsufa." A cikin tsawon lokaci da farfadowa masu tsufa , rashin jin dadi shine rashin lafiya da aikin da ke haɗaka da tsufa.
Akwai sharuɗɗa da dama wadanda zasu sauko, ciki har da yanayin kwayar halitta da kuma yanayin jiki .
Mene ne Sannin Layi?
Lokacin da kwayoyin sun rasa ikon rarraba sabili da lalacewar DNA ko raguwa na telomeres , sunyi ta hanyar canji wanda zai haifar da raguwa ko hallaka. Kwayoyin ko dai sun lalacewa (wanda ake kira apoptosis ) ko shiga cikin lokaci na ƙi (da ake kira senescence ).
Sakamakon ƙarshen sakamakon shine mutuwar cell, wanda shine wani ɓangaren al'ada na aiki na nazarin halittu da ke faruwa akai-akai a jikinka.
Kwayoyin ciwon daji suna tsammanin su zama kwayoyin da basu da tsundar tsarin senescence kuma a maimakon haka, ci gaba da yin jima'i da kuma haifar da matsalolin (da ciwon sukari). A gaskiya ma, masu bincike suna aiki don bunkasa hanyoyin da ke haifar da ciwon daji don fara tsufa kamar sauran kwayoyin halitta - a wasu kalmomi, masana kimiyya suna so su haifar da yanayin jiki a cikin wadannan kwayoyin halitta a matsayin hanyar magance ciwon daji.
Jiki da Zuriyarka
Yayinda yanayin kwayar halitta zai iya zama abu mai kyau saboda sassan suna ci gaba da maye gurbin kansu, jikinka zai ƙarshe cikin lokacin da aka ƙi da aka sani da kwayar halitta (a wasu kalmomin, senescence of organism).
Kamar yadda na ce a sama, wannan tsari zai fara ne lokacin da jikinka ya ci gaba sosai kuma kana da ƙarfin ƙarfi, kuma yana cigaba da sauran rayuwanka.
A cikin irin wannan yanayin, yawan lalacewar jikinka yana fara tsangwama ga iyawar jiki don aiki. Wannan tsangwama zai haifar da illa da muke hulɗa tare da tsufa.
Tsawancin rayuwa, Yara da lafiya, da kuma tsinkaye
Kimiyya ba ta gano hanyar da za ta katse tsarin senescence ba dangane da mutane, kuma wasu masu bincike (ko da yake ba duk wani abu ba) suna jayayya cewa ba za mu iya dakatar da shi ba.
Amma za mu iya jinkirta shi. To, burinku, shi ne don jinkirin tsarin senescence kamar yadda ya yiwu. Kuna iya yin wannan ta hanyar:
- Cin abinci mai ladabi: Wannan yana ba da jikinka tare da kayan gina jiki da yake buƙatar gyara lalacewa kuma ya yi yaƙi da lalacewar gaba.
- Rage damuwa: Wannan yana hana lalacewar lokaci mai tsawo daga jimawa da jarabawar damuwa da tsarin ilimin physiological da suka kirkiro.
- Yin guje wa bayyanar da abubuwa masu lalacewa : Wannan taimako yana ƙayyade yawan lalata kayan jikinka. Ka guje wa hasken wuta, hasken wuta, da gubobi.
- Yin amfani da Ƙari: Wannan yana taimakawa jikinka don gina kayan kyama mai karfi wanda ya hana lalata.
- Tsayawa cututtuka: Duba likitan ku don dubawa na yau da kullum da kuma rage yawan jini, nauyi da sauran abubuwan haɗari a karkashin iko.
Sources:
Campisi J. Aging, tsohuwar ƙwayoyin cuta, da ciwon daji. Kwanan nan na nazarin ilmin halitta. 2013; 75: 685-705.
Dimri GP et al. Menene senescence ya yi da ciwon daji? Ciwon Cancer. 2005 Yuni; 7 (6): 505-12.