No, just make sure: You are well hydrated before donating blood.
Answered 12/21/2013
5.6k views
None: While you should not go from the donation center to the gym (follow the nurse's instructions and take it easy for the rest of the day), there is no significant (or usually even noticeable) change in your level of function after a couple of donations and you are used to the experience and how your body responds.
Answered 3/15/2014
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