What time is the blood donation?

Blood donation is not a strict time limit, but after eating breakfast, adjust the spirit of blood donation is good, this time the blood donor is generally energetic, after blood donation is not easy to show adverse reactions, blood donation of about 200 to 400 ml. To donate blood after not feeling particularly tired as a standard, too much blood donation may take a long time for personal recovery, which has a certain impact on body immunity.