Igwe ikuku ma ọ bụ iku ume bụ ngwaọrụ ahụike nke nwere ike dochie nke ọma, jikwaa ma ọ bụ gbanwee iku ume physiological nke mmadụ, na-abawanye ikuku ikuku, kwalite ọrụ iku ume, belata oriri iku ume, ma chekwaa nchekwa obi.Ọ nwere ike inye iku ume na m ...
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