Voluntary blood donation is a loving action by human beings to donate their own blood to save the compatriots who need blood transfusion in the spirit of mutual help.

How much blood do we have in our bodies?

Does donating blood affect your health?

June 14th is World Blood Donor Day. The reporter walked into the Ningxia Blood Center and asked experts to unveil the magic of blood for us.

　　(Reported by Xie Yu from Ningxia Yinchuan)

Responsible editor: [Liu Pai]