Blackheads occur when your pores becomes blocked by sebum and dead skin. The black colour is not dirt. When the sebum and dead skin are exposed to the air they oxidize, which turns them black.There are many ways to get rid of them, from homespun remedies to medical treatments.lackheads occur when your pores becomes blocked by sebum and dead skin. The black colour is not dirt. When the sebum and dead skin are exposed to the air they oxidize, which turns them black.
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The thalassemias are a group of genetic (inherited) blood disorders that share in common one feature, the defective production of hemoglobin, the protein that enables red blood cells to carry and deliver oxygen. There are many different mechanisms of defective hemoglobin synthesis and, hence, many types of thalassemia.owever, persons with thalassemia minor have a normal blood iron level (unless they are iron deficient for other reasons). No treatment is necessary for thalassemia minor. In particular, iron is neither necessary nor advised.