Definition: Anemias is a Hebrew term meaning "nervous" or "sick." It signifies a state of physical distress caused by illness, which can include symptoms such as fever, nausea, vomiting, and fatigue. The term may also refer to an excess of blood in the body, often resulting from a condition called anemia. Anemias can be caused by several factors, including malnutrition, infections, autoimmune disorders, or genetic causes. Understanding anemias is crucial for diagnosing and treating conditions like malaria, which can cause severe fever and organ damage if not properly treated.