Ulusu lwakhiwe njani?
Ukujongisisa ubume bolusu kubonisa iileya ezintathu ezahlukeneyo:
1. i-epidermis,
2. idermis kunye ne
3. umaleko ongaphantsi kwesikhumba.
I-dermis ingaphezulu kwe-subcutaneous layer kwaye iquka iintambo ezilastiki, ezidityaniswe ngediagonally kwaye ngokuthe tye, zinika amandla amakhulu.Imithambo yegazi iphela kwidermis, ngelixa ukubila kunye namadlala e-sebaceous kunye neefollicles zeenwele nazo zikhona.
I-basal cell layer ikwi-epidermis ekutshintsheni phakathi kwayo kunye nedermis.Lo maleko uhlala uvelisa iiseli ezintsha, ezithi emva koko zinyuke zinyuke, zibe mcaba, zibe cornified kwaye ekugqibeleni zikhutshiwe.
Yintoni i-Tanning?
Uninzi lwethu lufumana ukutshiswa lilanga njengento emnandi kakhulu.Ukufudumala kunye nokuphumla kusinika imvakalelo yokuphila kakuhle.Kodwa yintoni eyenzekayo eluswini?
Imitha yelanga ibetha i-melanin pigments kwi-epidermis.Ezi zenziwa mnyama yimitha ye-UVA ekukhanyeni.I-melanin pigments yenziwe ngeeseli ezikhethekileyo ezilele nzulu kwisakhiwo solusu esibizwa ngokuba yi-melanocytes kwaye zihamba kunye neeseli ezijikelezileyo ukuya phezulu.Ibala elimnyama lifunxa inxalenye yemitha yelanga yaye ngaloo ndlela likhusela ulusu olunzulu.
Uluhlu lwe-UVB lwemitha ye-sunJs lungena nzulu eluswini kwaye lusebenza kwiimelano-cytes ngokwazo.Ezi ke zivuselelwe ukuba zenze i-pigments eninzi: ngaloo ndlela idala isiseko se-tan elungileyo.Kwangaxeshanye, imitha yeUVB ibangela ukuba umaleko weempondo (icallus) ube ngqindilili.Lo maleko utyebileyo unegalelo ekukhuseleni ulusu.
Zeziphi ezinye iimpembelelo ilanga elinazo ngaphandle kokwenza ulusu?
Ifuthe elithomalalisayo lokutshiswa lilanga aliveli kuphela kukufudumala kunye nokuphumla okufunyenweyo kodwa nakwisiphumo sokukhanyisa esikhanyayo;wonke umntu uyayazi imeko entle enokuziswa yimini yehlobo enelanga kuphela.
Ukongezelela, iidosi ezincinci ze-UVB zikhuthaza iinkqubo ze-meta-bolic kunye nokukhuthaza ukubunjwa kwe-Vitamin D3.
Ilanga ke ngoko livelisa ubutyebi beziphumo ezilungileyo:
1. ukomeleza amandla omzimba
2. ukomelezwa kokhuseleko lomzimba
3. ukuphuculwa kweempawu zokuhamba kwegazi
4. ukuphuculwa kokunikezelwa kweoksijini kwizicubu zomzimba
5. inzuzo ye-metabolism yamaminerali ngokuphuculwa kokunikezelwa kwe-calcium
6. ukuthintelwa kwezifo zamathambo (umzekelo, i-osteoporosis, i-osteomalacia)
Ukutshiswa lilanga lolunye uphawu oluqinisekileyo lokuba ulusu lutyhileke kakhulu kwaye ke kufuneka luphetshwe ngazo zonke iindleko.
Yintoni ukukhanya kwelanga?
Ukukhanya - ngakumbi ukukhanya kwelanga - ngumthombo wamandla ngaphandle kwawo ubomi obungenakucingelwa.Ifiziksi ichaza ukukhanya njengemitha yemitha ye-electromagnetic - njengamaza erediyo kodwa ngamaza ahlukeneyo.Ukukhanya kwelanga kubandakanya inkitha yeefrikhwensi ezahlukeneyo esinokuzibona sisebenzisa iprism, je imibala yomnyama.Kodwa i-spectrum ayipheli ebomvu kunye neblue.Emva kobomvu kuza ne-infra-red, esiyifumana njengokufudumala, emva kokuluhlaza okwesibhakabhaka kunye ne-violet kuza i-ultra-violet, ukukhanya kwe-UV, okubangela ukuvutha kolusu.
Ukuhlamba ilanga ngaphandle okanye kwi-solarium - ngaba kukho umahluko?
Ukukhanya kwelanga, nokuba kuvela eludongeni okanye esibhakabhakeni, kuyafana.Akukho nto ibizwa ngokuba “lukhanyiso olwenziweyo” ngengqiqo yokuba yahluke ngokupheleleyo kukukhanya kwelanga.Enye inzuzo enkulu yee-sunbeds, nangona kunjalo, kukuba amacandelo e-spectrum anokulungiswa ngokuchanekileyo kwiimfuno zomsebenzisi.Ukongeza, akukho mafu okuthintela ilanga kwi-sunbed ukuze ikhamera yedosi ihlale imiselwe ngokuchanekileyo.Kubalulekile ukuqinisekisa ukuba zombini ngaphandle kunye ne-sunbed ukuba ulusu alugqithiswanga.
Ukwenza ulusu ngaphandle kokutshisa - isebenza njani loo nto?
Imitha yelanga, ukongeza kwisiphumo esinqwenelekayo sokutshisa, ikwabangela ukubomvu okungafunekiyo kwesikhumba, i-erythema
ifom embi kakhulu, ukutshiswa lilanga.Xa utshiswa lilanga nje kube kanye, ixesha elifunekayo lokutshisa ulusu lide kunelo elifunekayo ukuze ulusu lube bomvu.
Ngaphandle koku, kunokwenzeka ukuba ufumane i-tan emnandi, ngaphandle kokutshisa - ngokulula nje ngokutshisa ilanga rhoqo.Isizathu soku kukuba umzimba unciphisa izigaba zokuqala zokubomvu kwesikhumba ngokukhawuleza, ngelixa i-tan ihlala izakha ngokuphindaphindiweyo.
Kwibhedi yelanga obona bukhulu bokukhanya kwe-UV kwaziwa.Ngenxa yoko isicwangciso sokutshisa sinokulungelelaniswa ukuze kuqinisekiswe ukuba umntu uyeka phambi kokuba kuqale ukutshisa kwaye ke ibala elilungileyo lebala liyakhiwa ngokuvela ngokuphindaphindiweyo.
Ixesha lokuposa: Apr-02-2022