Rules by blood donation:
1. Train and keep training physically.
2. Drink a lot and eat before the donation, but food should be light.
3. If possible do this with friends.
4. Do not try to stand up too early.
5. Trust the people there when they see you white.
6. Drink and eat after also.
7. Stay a bit in the room.
8. Do not care if others walk out faster then you.
9. Be thankful too God that you can do this, and try to not accept any presents.
10.Never give up.