Re: Ryan Clark- unsung hero?
He has a genetic condition that is common in african americans called sickle-cell disease. Its where the blood platelet cells become "sickle" cells that easily stick together and cause huge issues. At high altitudes this especially comes into play. When he was in Denver last he had this issue which led to sickle-cell anemia which led to the removal of his spleen.
Here's the difference between a normal blood cell and a sickle-cell:

That is an image of a single, normal blood cell. Mostly circular.

The misshapen cell is the sickle-cell.

Again the difference is shown here.
The issue with the sickle-cell is the abnormal hemoglobin which causes the cells to be shaped the way they are. When moving through vessels they often become "sticky" and can clog up vessels.
Some treatments are bone marrow transplants (actually cures the disease), some antibiotics, sometimes blood transfusions are necessary...there really isnt too much else that I know of.
Furthermore, to answer the SPECIFIC question of why it is affected at high altitudes. There are a couple reasons I can come up with:
1. High altitudes put excess stress on the body, and excess stress "ramps" up the body which would cause the blood to be kinda "used" more and thus lead to more complications because of the stickiness of the sickle cells
2. High altitudes have lower oxygen levels and people with sickle cell already have problem with their blood being able to transport ample oxygen throughout the body
Also excessive exercise and stress (as mentioned above) cause problems and as a football player he is always exercising alot and in stressful situations.
I dont know if he could go if we had to play IN Denver!
Originally posted by SanAntonioSteelerFan
Here's the difference between a normal blood cell and a sickle-cell:

That is an image of a single, normal blood cell. Mostly circular.

The misshapen cell is the sickle-cell.

Again the difference is shown here.
The issue with the sickle-cell is the abnormal hemoglobin which causes the cells to be shaped the way they are. When moving through vessels they often become "sticky" and can clog up vessels.
Some treatments are bone marrow transplants (actually cures the disease), some antibiotics, sometimes blood transfusions are necessary...there really isnt too much else that I know of.
Furthermore, to answer the SPECIFIC question of why it is affected at high altitudes. There are a couple reasons I can come up with:
1. High altitudes put excess stress on the body, and excess stress "ramps" up the body which would cause the blood to be kinda "used" more and thus lead to more complications because of the stickiness of the sickle cells
2. High altitudes have lower oxygen levels and people with sickle cell already have problem with their blood being able to transport ample oxygen throughout the body
Also excessive exercise and stress (as mentioned above) cause problems and as a football player he is always exercising alot and in stressful situations.
I dont know if he could go if we had to play IN Denver!

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