Dalilin da Ya Sa Ka Fi Mutane Da yawa Hankali

Kuna jin kun fi jin zafi fiye da yawancin mutane? Cewa kuna amsa motsin raɗaɗi mai zurfi da ƙarfi fiye da yawancin sauran? Ba abin mamaki bane, tushen wannan abin mamaki yana da tushe a cikin DNA ɗin ku. Amma ba yadda kuke tsammani ba. Ku yi itmãni ko a'a, dalilin wannan ƙaramin azabtarwa mai zafi shine a zahiri saboda gaskiyar cewa ƙaramin adadin mutanen zamanin yau suna da takamaiman nau'in halitta wanda ya samo asali daga Neanderthals.

Haka ne, Neanderthals. Tabbas, an san ɗan lokaci cewa mutane sun yi hulɗa da Neanderthals kafin mu iya korar 'yan uwanmu na juyin halitta masu kyau da taɓarɓarewa saboda Homo sapiens mafi girman tashin hankali da gasa. Koyaya, Homo neanderthalensis har yanzu yana cikin kwayar halittar mu ta “ɗan adam”. Dangane da rahoton da aka buga kwanan nan a cikin mujallar Kimiyya , kusan kashi 2.6% na DNA a cikin mutane masu rai an gaji su daga Neanderthals (Kimiyya, Nuwamba, 2017).

Bugu da ƙari, binciken kwanan nan a cikin Biology na yanzu (Satumba, 2020) yana ba da shawarar cewa 0.4% na yawan jama'a yana da bambancin nau'in Neanderthal wanda ke haɓaka motsawar jijiyar jijiya da ƙarni a cikin hanyoyin jin zafi na gefe, don haka yana haifar da haɓaka haɓakar jin zafi da babban ciwon kai a cikin wannan ƙaramin rukuni na yawan jama'a. A bayyane yake, wannan yana nufin cewa miliyan 31.2 na mutane biliyan 7.8 na yanzu - daya cikin 250 - suna fuskantar matsanancin zafi fiye da yawancin mutane. Lallai, wasu mutane na iya ganewa da samun gogewa da abubuwan jin zafi kamar sommelier na iya rarrabuwar kawuna, yadudduka, da abubuwan mutum a cikin ruwan inabi mai kyau.

Don samun ƙarin fahimtar wannan binciken, yana da amfani a san kaɗan game da tsinkayar jin zafi, da kuma yadda jijiyoyin jijiyoyi ke aiki da amsa abubuwan da ke damun su. Da farko, lokacin fasaha don fahimtar jin zafi shine nociception. Wannan shine gogewar sani na motsawa mai raɗaɗi ko rauni. Menene ƙari, akwai nau'ikan abubuwan da ke haifar da raɗaɗi: zafi (zafi da sanyi), injin (matsin lamba da pinching), da sinadarai (guba da guba).

Bugu da ƙari, akwai ƙarshen ƙoshin jijiya na musamman waɗanda ake kira nociceptors waɗanda ke ganowa da amsa waɗannan abubuwan masu cutarwa ta hanyar aika siginar lantarki tare da jijiyoyin jijiyoyi zuwa kwakwalwa ta hanyar kashin baya. Waɗannan ƙwayoyin jijiyoyin sun ƙunshi sel na musamman waɗanda suka haɓaka ikon karɓa, ganewa, haɗawa, haɗewa, da amsawa ga abubuwa daban -daban ta hanyar aika siginar kansu zuwa takamaiman manufa a cikin jiki. Ana kiran wannan azaman jijiya na harbawa ko yada siginar sa zuwa wasu ƙwayoyin jijiya ko kyallen takarda kamar tsokoki, gland, tsarin jijiyoyin jini, da gabobi.

A matakin kwayoyin, wannan yana yiwuwa saboda, lokacin da aka kunna, ƙwayoyin jijiya (ko neurons lokacin da ake magana akan kwakwalwa da kashin baya) suna iya musanya ions masu wutan lantarki a cikin membranes ɗin su ta tashoshin kwayoyin da ake kira ionophores (a zahiri "ion carrier"). Lokacin da membrane na jijiya ke hanzarta musanya ions sodium na extracellular (watau sodium yana wanka da tantanin halitta) tare da sinadarin potassium na ciki (watau sinadarin potassium da ke cikin tantanin halitta) yana haifar da igiyar lantarki wanda ke yaduwa tare da tsinkayen jijiya (galibi ana kiranta axons) kamar wutar lantarki da ke tafiya tare da waya. Lokacin da wannan motsin jijiyar ya isa ga inda aka nufa, yana haifar da tarin abubuwan da a ƙarshe ke haifar da martani da/ko tsinkayen sani.

Dangane da binciken da aka lura a sama, ya bayyana cewa mutanen da ke da Neanderthal gene suna da nociceptors tare da ionophores a shirye don buɗe jihar. Don haka, ƙaramin ƙarfafawa zai haifar da siginar jijiya a cikin mutanen da suka gaji kwayar halittar dangi ga mutane ba tare da ita ba. Ainihin, wannan yana nufin mutanen da ke da asalin halittar Neanderthal an tsara su don jin zafi. Abin ban sha'awa, an kuma nuna cewa raunin tunani ko na ruhaniya yana shiga tsakani ta yankuna guda ɗaya na kwakwalwar da ke mulkin nociception na jiki. Duk da yake babu bayanai (tukuna) da ke haɗa jigon halittar Neanderthal nociceptive don haɓaka tashin hankali, yana iya yiwuwa bincike na gaba zai bayyana haɗin.

Ka tuna: Yi tunani da kyau, Yi aiki da kyau, Ji daɗi, Kasance lafiya!

Copyright 2020 Clifford N. Lazarus, Ph.D. Wannan post ɗin don dalilai ne na bayanai kawai. Ba a yi niyyar zama madadin taimako daga ƙwararren masanin kiwon lafiya ba. Tallace -tallacen da ke cikin wannan post ɗin ba lallai ne su nuna ra'ayina ba kuma ba ni ne suka goyi bayan su ba.