Anemia is a condition where the body does not have enough healthy red blood cells or hemoglobin to carry oxygen to the body's tissues
. Hemoglobin is a protein found in red blood cells that carries oxygen from the lungs to all other organs in the body. Anemia can cause tiredness, weakness, shortness of breath, pale or yellowish skin, irregular heartbeat, dizziness or lightheadedness, chest pain, cold hands and feet, and headaches
. There are many forms of anemia, each with its own cause, and it can be short-term or long-term, mild or severe
. Anemia can be a warning sign of serious illness and can cause many health problems if not treated, such as severe tiredness, pregnancy complications, and heart problems
