welll i have donated blood i think 8 times (im 19 years old now) and i am gonna donate agin but i am training ot get my VO2 max as high as i can for this college class and i was wondering if it would bring my VO2 max down (after i have regained all the blood back) class ends in like 6 weeks i think. and what id the down side for weight traning and running for donating blood?

do your cells get trained to handel me oxygen? or is it a body thing?

tahnks :-D