Masingazibini; imibimbi ayinakukhutshwa. Nangona iimeko ezininzi zokuba sifumana zona zihlobene nemiphumo engaphephekiyo yokuguga, kukho ezinye izinto ezimbalwa ongenakuze uziqwalasele.
Ukuqonda ngokucacileyo indlela esineminyaka yobudala kunye nento ebangela ukuphuhliswa kwemibimbi, kunceda ukuqonda kangcono isisu esisisiseko sesikhumba sethu.
Ulwakhiwo lweKhumba kunye neAnatomy
Ulusu lomntu lenziwe ngamacandelo athile ahlukeneyo:
- I- epidermis yinkqutyana engaphezulu kwesikhumba ekhonza njengesithintelo kwizinto zangaphandle. Kuloluhlu, iiseli ezintsha zikhula rhoqo kwaye zitshintshe iiseli ezidlulileyo kufutshane, apho ziya kugqitywa khona. Ukuba le nqubo ihlala ingaqhelekanga, isikhumba sinokubonakala sikhoxeka kwaye sikhathele.
- Ingqimba yesibini yesikhumba yiderm . Iqulethe izinto ezisemgangathweni zesikhumba, kubandakanywa nezicubu ezinxibelelwano eziphambili. Iintlobo ezahlukeneyo zezicubu ezinxibelelana zisebenza imisebenzi eyahlukileyo. I-Collagen inikeza isikhumba amandla kunye nokuqhaqhazela, ngelixa iiprotheni ezaziwa ngokuba yi-glycosaminoglycans zinika ukuqina komzimba kwaye i-elastin inika i-flex flex and elasticity.
- Ikhonkco le-dermal-epidermal liphakathi kwe-dermis kunye ne-epidermis. Esi sakhiwo esibalulekileyo senza iziqulatho ezinjengomunwe, ezibizwa ngokuba yi-rete ridges, ezandisa ummandla wendawo ye-epidermis evezwe kwimithambo yegazi, okuvumela ukuba ngcono ukufumana izondlo ezibalulekileyo.
- Ingqimba engaphantsi kwesikhumba yinyama engaphantsi , eninzi iyenziwe ngamaseli enamafutha atshaya umzimba kwaye enze isikhumba sibonakale siphuma kwaye siphelele. Kwakhona iqulethe izigulane zethu ezizenzekelayo, izigulane ezikhukhulayo kunye neenwele zezinwele .
Ukuphazamiseka kunye nezinye iimpawu zokuguga kubangelwa utshintsho kwi-skin anatomy, kunye nemibandela yezinto esinokulawula kunye nabanye esinako.
Phakathi kwezinto ezintandathu ezibangela ukuguga kwelaphu:
Ukuguga kwexesha
Njengomntu ubudala, iiseli ze-epidermal zincinci kwaye zincinci, zenza ukuba isikhumba sibheke ngokucacileyo. Ukungabikho kokunyanzela kukukhusela umsebenzi wesikhumba, ukuvumela ukuba umswakama ukhutshwe endaweni yokugcinwa kwesikhumba. Oku kubangelwa ukoma. Inombolo yeeseli ze-epidermal ayikho nje kuphela iyancipha ngeepesenti ezili-10 ngamnye kwiminyaka elishumi , ikwahlula ngokuthe ngcembe njengoko sikhulile, okwenza isikhumba singakwazi ukuzilungisa ngokukhawuleza.
Imiphumo yokuguga kwisalathisi sembewu ibalulekile. Akugcini nje ukuba lo buncwane buncinci, kodwa i-collagen encinane iveliswa kwaye i-elastin fibers iphela. Olu tshintsho kwisakhiwo sesikhumba, okubangela ukuba lube lukhuni kwaye luphephe. Okwangoku, izilonda ezixhambileyo zikhula kakhulu kodwa zivelise i- sebum encinci ngelixa inani lezithobezi ze-sweat liyancipha. Zomibini zinguqulelo zikhokelela kwesikhumba esomileyo.
Ngelo xesha, iinqwelwana ze-dermal-epidermal junction ziqala ukuphawula, okwenza isikhumba sibe sinyamale kwaye kulula ukukrazula. Le nkqubo iyanciphisa ukufumaneka kwezondlo kwi-epidermis, iphazamise inkqubo yokulungisa yesiqhelo.
Ukulimala kwelanga
Ukuboniswa kwimibala ye-UVA kunye ne-UVB evela kwilanga kufikelela kuma-90 ekhulwini empawu zokuguga kwexesha elidala .
Uninzi lweempembelelo ze- photoaging , ezibandakanya imibimbi kunye namabala amnyama, avela kuminyaka engama-20. Inani lomonakalo ilanga elibangela ulusu lugqityiwe ngumntu ngamnye wokuhlaselwa kwimizimba ye-UV, kunye nebala labo elithile (i-pigment).
Ukutshatyalaliswa kwelanga ngokugqithiseleyo kuthintela iindawo zesikhumba ngezindlela ezahlukeneyo:
- I-epidermis iba yincinci kwaye izilonda zesikhumba, ezifana ne- actinic keratoses , basal cell carcinoma , kunye ne- squamous cell carcinoma , ziqala ukwenza.
- Kwi-dermis, ilanga linokulimaza i-collagen fibers ngokukhawuleza kunexesha eliqhelekileyo ngelixa i-elastin iqala ukuqokelela kumazinga angavamile. Olu qoqo lubangela i-enzymes ebizwa ngokuthi i-metalloproteinase ukuba iveliswe ngobuninzi. I-Metalloproteinases ngokuqhelekileyo ilungisa isikhumba ngokuvelisa i-collagen, kodwa ukulimala kwelanga kubangela ukuba bangasebenzi kwaye baphule phantsi i-collagen. Oku kubangela ukubunjwa kwee-collagen fibers ezingaziwa njengezixhobo zelanga. Njengoko isikhumba siphinda le nkqubo yokuvuselela ngokungafezeki ngokuphindaphindiweyo, imibimbi ikhula.
AmaRadio
Ii- radicals zamahhala zi-molecule zomoya ezingazinzileyo ezine-electron enye kuneendawo ezimbini. Ngenxa yokuba iifowuni zifunyanwa ngamabini, i-molecule kufuneka ikhembe ezinye iamolekyuli kwenye i-elektroni. Xa ilamleksi yesibini ilahleka i-electron yayo kwi-molecule yokuqala, kufuneka ifumane enye i-elektron, iphinda iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde ibuyele.
Le nkqubo ingonakalisa umsebenzi weseli kwaye ishintshe imfuza yeeseli. Umonakalo omkhulu wokukhulula ubangelwa yimisipha ngokusebenzisa i-metalloproteinases ephula i-collagen, eyenziwa yimbi kakhulu nangona ixabiso elincinci le- UV , ukutshaya okanye ukuchasana nokungcola komoya.
IHormonal Changes
Kungenzeka ukuba imiphumo ye-hormone yokumisa umva kunye nokwehla kwe- estrogen yokuvelisa ixanduva lokuguga kwesikhumba. Nangona kunjalo, uphando alukafumananga luluphi utshintsho olusecaleni lokunciphisa i-estrogen okanye ukuguquka kwesikhumba kubangelwa ukukhanya kwelanga okanye ukuguga kwexesha eliqhelekileyo. Ngokwahlukileyo, izifundo zezilwanyana ziye zabonisa ukuba ukungabikho kwe-estrogen kunokubangela ukwehla kwamanqanaba e-collagen ngamaphesenti amabini ngonyaka, kunye nokunciphisa kwesikhumba somlinganiselo wepesenti enye ngonyaka.
Sebenzisa iMiscle
Akuyiyo ibali elidala labafazi. Ubuso obungokwenkohlakalo obunokubangela ukuba ulusu lube lukhuni njengokuba lulahlekelwa yintambo. Imigca epholileyo phakathi kweelishi kunye neenyawo ezinjengeziqhumane ezisuka kumacangca ethu amehlo zikhula njengamahlunu amancinci kule mimandla.
Gravity
Imiphumo yokudakumba yenza ukukhutshwa kwesikhumba kubonakale ngakumbi njengoko kuqhutywe ngakumbi ngaphantsi kwefuthe lokudonsa okulula. Oku kubangela ukuba amajoni kunye neentloko ze-fooping zihlala zibadala.