Quote Originally Posted by Latege View Post
Having looked for advice on a few other sites the consensus seemed to be that a 25 mile run 12 hours after giving blood isn't a great idea so I dropped to a simple 5 miler. Probably a good idea as I could feel the difference even then. I may have been able to get round a 25 miler but I doubt I'd have enjoyed it.
Giving blood will set you back for a while. When you think about it training is in part about building up the blood. Then you give that hard work away in donation.

If you've got lots of iron in your body you'll be back to normal in a month or two.