I-pigmentation yesikhumba yeso sizathu esivakalayo sokuba kutheni abesetyhini benze izinto ezincedisayo. Le ngxaki ivela kwizenzo ze-melanocytes. Oku, okubizwa ngokuba yii-pigment cells, ezikwazi ukuhlambalaza ngemibala emnyama, xa kuthelekiswa nesikhumba. Oku kwenzeka ngeendlela ezahlukeneyo, kodwa ngokubanzi - kunye neentlobo ze-pigment dysfunctions zemibala yesikhumba evamile.
Umbala we pigment uxhomekeke kwi-genetics. Nguye ophakamisa intlobo ehlukeneyo yembala yesikhumba. Ezi ziquka:
- melanin;
- i-carotene;
- i-oxyhemoglobin;
- deoxy-hemoglobin.
Umbala wesikhumba ebantwini unqunywe ngumlinganiselo ohlukileyo wedatha ye-pigment.
Ukuguguzwa kwesikhumba se-ubuso - izizathu
- Ulungelelwano lubukeka kwimibala ehlukeneyo, amabala ahlukeneyo, anqunywe ngumlinganiselo ophezulu we-melanin. Ukuba i-pigmentation ibonakaliswe ngombala omhlophe, lo ngumqondiso wexabiso elincinci le-melanin egazini okanye xa lingekho. Umzekelo wale nto ingaba kukuzalwa komntwana omnyama kubazali abaqaqambileyo.
- Iimpembelelo zangaphandle ze- ultraviolet, iqabunga elinamandla, ubushushu. Umzekelo, ukukhanya kwe-ultraviolet kuchaphazela kakhulu i-pigmentation yesikhumba, ehlala kwiimeko eziqhelekileyo zibonakalisa njenge-moles, amatsha amnyama. Oku kubangelwa kukuba ngexesha lokusebenza kwe-ultraviolet, umsebenzi we-melanin usebenze kwaye ulandelelwano olude ngokweqile lulandelayo. Emva koko, ulusu luba mnyama, kuthelekiswa nalo lonke umzimba. Isiphumo esinjalo sinokukhokelela ekukhanyeni okukhulu kwesikhumba.
Iimbangela ze-pigmentation ezinzima ebusweni
Ezi ziquka:
- Ukunyamekela kwesikhumba. Oko kukuthi, izimonyo ezinobulunga obuhle kunye nokungabi nanele ngokwaneleyo ngobuso, kunye nokusetyenziswa kakubi kwemikhwa emibi. Ikhumba elijongene nalo lifuna ukondliwa ngama-creams, iifruity and milk masks, ekhokelela ngokupheleleyo ekuqiniseni iiseli zeelinen kunye nophuhliso oluqhelekileyo lweehagu ezifunekayo.
- I-avitaminosis engapheliyo. Ukungabikho kwamavithamini emzimbeni kubangela ukuphulwa okukhulu. Ngokukodwa, oku kukusilela kwe- vitamin C , A, PP, i-folic acid kunye nezinye izinto ezinokunyusa i-melanogenesis. Kwinkqubo yokukhanya kwangaphandle kwesikhumba, kubalulekile ukusebenzisa amalungiselelo angaphakathi angabancedani. Kule nto, i-magnesium, i-zinc, isinyithi kunye nokulandelelana kwezinto zobhedu zingacinywa. Indlela edibaniseneyo enokubangela ukuguqulwa kwamagqabini iya kuncedisa ekuqhelweni kwe-pigments synthesis.
- Ukukhulelwa. Le meko isebenza nakwizinto ezibangela ukuguqulwa kwimibala ebusweni. Ngethuba le meko yesithakazelo, kukho ukuphelelwa kwe-hormonal epheleleyo, oku kungakhokelela ekubonakaleni kwimibala ebumnyama. Ezi ndawo zibizwa ngokuba yi-chloasma. Kwiimeko ezininzi, ukugqithisa okunjalo kubonakalisa ebunzini, izihlathi, kufuphi nomlomo. Ngoko ke, sinokuthi ngokuzithemba ukuba isizathu esona sizathu sokuguqulwa kwesikhumba ebunzini sikhulelwe.
- Utshintsho lwamaxesha emzimbeni. Ngokukhula kwesikhumba, isikhumba sithinteka kakhulu ekukhanyeni kwe-ultraviolet. Ngoko ke, emva kweminyaka engama-40, ingakumbi ngexesha lokusuka kwimizi, abafazi kufuneka babe ngaphantsi kwelanga.
- Ukusabela kwesikhumba kumalungiselelo ahlukahlukeneyo okuzilungisa kwiirons. Oku kwenzeka kaninzi emva kokupasa, okungenakufanisa uhlobo lwakho lwekhumba, kwaye emva kokuhamba kwesikhokhethi.
Iinkqubo ezinjalo zisebenza kakuhle njengoko ulondolozo lwesikhumba, kodwa ke, lunokulimaza i-pigment metabolism. - Ukufumaneka kwezifo ezingapheliyo zesibindi, i-pancreas kunye nokuphazanyiswa kwephepha lokutya.
Iimbangela zokuguqulwa kwamehlo phantsi kwamehlo, ebunzini, kwi-cheekbones nakwezinye iindawo zomntu, kunye nomzimba wonke - imeko yethu jikelele. Ngoko ke, emva kokubonakaliswa kokuqala kokuphulwa komsebenzi wesikhumba, kuyimfuneko ukuthatha amanyathelo okonyango okanye ukhuseleko, ukuze oku kungenzeki kwakhona. Ngoko ke, unganiki izizathu zokusasazeka ngakumbi nangaphezulu.