Umhlaza ubangela ukuba iiseli zahlukane ngokungalawulekiyo. Oku kunokubangela amathumba, umonakalo kwi-immune system, kunye nokunye ukuphazamiseka okunokubulala. Umhlaza unokuchaphazela amalungu awohlukeneyo omzimba, njengamabele, imiphunga, idlala lengqula, nolusu. Umhlaza ligama elibanzi. Ichaza isifo esibangela ...
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