DrDonald's Articles In Health & Medicine
January 25, 2007 by DrDonald
If you are the type to faint when you have a flu shot or when blood is taken, I thought the following study was important enough to reprint. It might help you the next time around.

It turns out that there is some selective advantage to fainting. Some of our ancestors who fainted at the sight of blood or upon feeling pain on the battlefield thereby survived and went on to have children, thereby also passing on this genetic trait. For example, I fare quite well, looking at the blood of others, ...