| Anemia results in a decrease in the amount of oxygen that the blood is
able to carry. Anemia reduces the amount of oxygen that is available to
the cells of the human body. Resulting in less energy available to
perform their normal functions. Critical processes, such as muscular
activity and cell building and repair, slow down and become less
efficient. When your brain lacks oxygen, dizziness may result, and your
mental faculties are less sharp. Note that anything causing a deficiency
in the formation or production of red blood cells, or that leads to the
too-rapid destruction of red blood cells, can result in anemia. Drug use,
hormonal disorders, chronic inflammation in the body, surgery, infections,
peptic ulcers, hemorrhoids,
diverticular disease, heavy menstrual bleeding, repeated
pregnancies, liver damage, thyroid disorders,
rheumatoid
arthritis, bone marrow disease, and dietary deficiencies
(Iron, Folic acid, and vitamins B6 and B12) can all lead to
anemia. There are also a number of hereditary disorders, such as
sickle cell disease and thalassemia, that cause anemia. Pernicious
anemia is a severe form of anemia that is due to vitamin B12
deficiency. Persons with this disorder cannot absorb any form of
vitamin B12 from the gastrointestinal tract. The most common cause
of anemia is iron deficiency. Iron is an important factor in
anemia because this mineral is used to make hemoglobin, the
component of red blood cells that attaches to oxygen and
transports it. Red blood cells exist only to oxygenate the body,
and have a life span of about 120 days. If a person lacks
sufficient iron, the formation of red blood cells is impaired.
Iron-deficiency anemia can be caused by insufficient iron intake
and/or absorption, or by significant blood loss. The latter is
commonly seen in women who suffer from menorrhagia (heavy or
prolonged menstrual bleeding), which in turn may be caused by a
hormonal imbalance, fibroid
tumors, or uterine cancer. |