Answer:
Well to start off, she isn't wrong, for a short period of time she will have less blood in her body but that isn't permanent and isn't dangerous at all. You usually give 470ml and that is only 8% of your blood. You would need to lose 2000ml to die. Plus your blood will be back to normal in 1-2 days. It is very helpful to donate blood because people always will need it. It's a great thing to do and you can be sure that you will help someone in the process. Hope this helps!
Step-by-step explanation: