Different types of anemia and their causes include: 1  Iron deficiency anemia. This is the most common type of anemia worldwide. 2  Vitamin deficiency anemia. In addition to iron, your body needs folate and vitamin B-12 to produce enough healthy red blood cells. 3  Anemia of chronic disease.
The definition of infirm is being sickly or weak, or not strong in will or character. An old and sickly person is an example of someone who is infirm. When you cannot make or stick to a decision and are weak-willed, this is an example of being infirm.
affirm. 1  To agree, verify or concur; to answer positively. She affirmed that she would go when I asked her. 2  To assert positively; to tell with confidence; to aver; to maintain as true. 3  To support or encourage. They did everything they could to affirm the children's self-confidence.