June 14 is World Blood Donor Day. Why does blood donation need a day? Because it’s one of the simplest gifts of life and too few people give it. Why June 14? Because June 14th was the birthday of Karl Landsteiner, the man who discovered the ABO blood system that is used to categorize the type of blood we have.
Here are some answers to questions many people ask about blood donation:
How much blood do I have in my body?
This depends on if you’re a woman or a man. Women have about 10 pints while men about 12. Compare that with …read more