I intend to give blood at some point this week at my local community centre.
How much of a difference is this going to make to the effort required to keep up my usual pace? Or will the difference be negligible?
How long will any potential effects take to wear off?
I know professional cyclists have in the past (of course this is completely eradicated nowadays...) increased their blood volume to give them an advantage over the rest of the peloton. Can I infer that a lower amount of blood will have the opposite effect?
I commute ~16km most days and usually go out for a longer ride at the weekend so I'm fairly used to cycling intermediate distances.