So I'm interested in donating blood, so out of this interest, I Googled "health benefits of donating blood". One of them is that it slows down iron accumulation. Why is this a good thing? I know too little iron in the blood causes anemia, but what does too much iron in the blood cause?

Question

anonymous · Answer

iron is present in our red blood cells .it makes heamoglobin which is the molecule binds with oxygen and transport it to all over the body within the blood stream.as u donate blood u have to check that if there will no problem afterwards in losing RBCs that causes many diseases include anemia too.if u have normal blood presure and no. of blood cells then u can donate.

anonymous · Answer

The extra iron builds up in the body's organs and damages them

anonymous · Answer

Yeah, too little iron does lead to anemia. 

Some people have a genetic condition called "hemochromatosis." 
It's where we absorb too much iron out of our food. 
And like asmagul says, the extra iron builds up in our vital organs. 

But since this is a bit of a rare genetic condition, caused by bad genes, it really shouldn't even be a problem for most people.