Kungani siba mpunga, futhi kungani abanye abantu bengampunga?

Umbala wezinwele zakho ulawulwa izinhlobo ezahlukene ze-melanin pigment, kwenzekani ku-melanin uma usukhulile?

Izinwele ezimpunga ziwumphumela wokuncipha kwenani le-melanin ezinweleni, i-pigment etholakala cishe kuzo zonke izinto eziphilayo, hhayi nje kubantu. Kuyinhlanganisela efanayo eqinisa isikhumba sakho ngokuphendula ukukhanya kwelanga.

Ngenye indlela, kubangela izinwele ezinsundu noma ezimnyama, kanti enye inhlanganisela inesibopho sezinwele ezibomvu nama-freckles.

Lawa maseli akhiqizwa kumaseli akhethekile abizwa ngokuthi ama-melanocyte atholakala ngaphakathi kwezinwele esikhumbeni.

Njengoba abantu bekhula, ama-melanocyte ayayeka ukusebenza futhi akhiqize i-melanin kancane kancane, aze agcine efile futhi angashintshwa.

Khona-ke izinwele zikhula ngaphandle kombala futhi zibonakala obala. Umehluko omningi uwufuzo, kodwa ezinye izici ezifana nokungadli kahle, ukubhema nezinye izifo zingabangela ukumpunga ngaphambi kwesikhathi.

Ngisho nokushaqeka okubi ngezinye izikhathi kungaholela ekubeni izinwele zibe mpunga ngokushesha.Kungani siba mpunga, futhi kungani abanye abantu bengampunga?