Blood donating is the most precious gift that anyone can give to another person the gift of life. A decision to donate your blood can save a life, or even several if your blood is separated into its components red cells, platelets and plasma which can be used individually for patients with specific conditions.
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Answer:
Ask people around you who you think would not have gone nose blind
The answer in the space provided is anemia. It is because anemia would likely cause other people who has a type of anemia experience a craving of iron or other objects as these are symptoms associated with it. That is why the person who has iron object cravings are needed to be tested if they have some sort of anemia, in order to identify what causes him or her to do it.