Often feel tired and dizzy, even though he is not doing heavy physical activity. Be careful, this could be a sign of lack of blood. Lack of blood or anemia is a condition that occurs because the body does not have enough red blood cells to carry oxygen throughout the body. There are various types of amenia, ranging from iron deficiency anemia, vitamin deficiency anemia, anemia caused by pregnancy, and aplastic anemia. However, the most common anemia suffered by some people is iron deficiency anemia. This condition occurs when the body lacks iron which is needed in producing red blood cells. Patients with iron deficiency anemia will generally experience symptoms of fatigue, dizziness, difficulty concentrating, headaches, tingling, pale skin, cold hands and feet, decreased appetite, and heart palpitations. In fact, many people still do not realize that they have a lack of blood and think that these symptoms are not a sign of blood deficiency. And keep in mind, although the symptoms ...