Blood donation before a big ride?
	
	
		So this might be one of the dumbest questions to grace the forum, but I'd like some additional thoughts.
I'm a regular blood donor and I scheduled an appointment to donate this Friday even though I'll be particpating in my first metric century this Sunday (I'm pretty excited and nervous! :) ).  The woman I spoke with assured me that I should be fine provided I drink plenty of fluids before the donation and afterwards, and that it's only recommended not to lift heavy things...
What do you all think, should I reschedule for after the ride on Sunday?  I'm starting to have some second thoughts :rolleyes:  and would appreciate any opinions out there. 
Thanks!
	 
	
	
	
		What does your body tell you?
	
	
		I rode with one of my regular ride buddies on Sunday.  He had donated blood on Friday.  He is usually quite a bit stronger than I am, but I could tell he was lagging.  It could have been a physical result, or it could have been psychological.  But his performance was definitely not what it normally is.
You say you are a regular blood donor.  How do you usually feel after donating?  You know your body best.  But unless there is a specific reason you need to or want to donate on that day, I'd recommend that you reschedule until after your metric.