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TimFreeman comments on Lifestyle interventions to increase longevity - Less Wrong

122 Post author: RomeoStevens 28 February 2014 06:28AM

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Comment author: TimFreeman 28 February 2014 06:10:01AM *  6 points [-]

I have experienced consequences of donating blood too often.The blood donation places check your hemoglobin, but I have experienced iron deficiency symptoms when my hemoglobin was normal and my serum ferritin was low. The symptoms were twitchy legs when I was trying to sleep and insomnia, and iron deficiency was confirmed with a ferritin test. The iron deficiency symptoms went away and ferritin went back to normal when I took iron supplements and stopped donating blood, and I stopped the iron supplements after the normal ferritin test.

The blood donation places will encourage you to donate every 2 months, and according to a research paper I found when I was having this problem essentially everyone will have low serum ferritin if they do that for two years.

I have no reason to disagree with the OP's recommendation of donating blood every year or two.

Comment author: [deleted] 28 February 2014 09:34:14PM 2 points [-]

The blood donation places will encourage you to donate every 2 months,

IIRC, where I am they don't even allow you to donate blood if you've already done so in the past three months or, if you're a fertile woman, in the past six months.