Emzimbeni womuntu, kunezinto eziningi ezigcwalisa lokhu noma lokho okusebenzayo. Indima ebalulekile idlalwe yi-melanin, ephethe ukuvikelwa emisebeni yama-ultraviolet eyingozi. Nguye ovikela isikhumba ekushiseni futhi aphendulele ukushisa okuqondisiwe namandla e-Sun abe ngumthombo wokushisa kwelanga. Yiqiniso, umuntu ngamunye unesikhathi eside ngokukhanya kwelanga ngendlela yakhe, ngakho-ke uma kuholela ngokuzumayo ukushisa, lokhu kubonisa izinga eliphansi laleli pigment.
Yikuphi ukudla okuqukethe i-melanin?
Sivame ukuhlangabezana nolwazi lokuthi imikhiqizo ethile iqukethe izinto ezidingekayo. Noma kunjalo, lapho ebuzwa ukuthi i-melanin iqukethe, abaningi bakuthola kunzima ukuphendula. Lokhu kuyaqondakala, ngoba, njengoba kwenzeka, le pigment ayitholakali ekudleni, ikhiqizwa ngumzimba uqobo, futhi umuntu uyakwazi ukusiza imfundo yakhe kuphela. Njengoba kwenzeka, ukuze kubonakale inani elanele le-melanin, kubalulekile ukuba unake leyo mikhiqizo equkethe amino acid njenge tryptophan ne-tyrosine. I-synthesis yabo iqinisekisa ukukhiqizwa kwalesi sidakamizwa ngamanani afanele. Ukudla kufanele kufaka imikhiqizo eminingi ngokulinganisela okulinganayo, ngoba awukwazi ukushiya umzimba ngaphandle kwamavithamini awusizo.
I-amino acid yokuqala, esiza ukukhiqiza i-melanin,
Ngokuqondene ne-tyrosine, itholakala ekudleni kwemfuyo nemifino (inyama, inhlanzi, izithelo). Ngokubambisana bangatholakala ebhanana nasezinkomeni. Ukuze i-melanin ivele emzimbeni ngokuhamba kwesikhathi, udinga ukunaka ukudla, equkethe inhlanganisela yamavithamini athile. Ngokuvamile kuqondene nezitshalo, amafutha, izithelo ze-orange nemifino, lapho ungathola amavithamini A , B10, C, E kanye ne-carotene.
Konke lokhu kuhlangene kuzosiza umuntu akhulise izinga le-melanin emzimbeni wakhe.