Anemia is quite a common problem and this is caused by lack of hemoglobin in the blood. Sometimes the symptoms of anemia can be confused with the symptoms of a much more serious disease. Some of the main symptoms of this problem are heart palpitation, pale skin, depression, fatigue, and dizziness. There are several different types of anemia and some of the main ones are anemia caused by vitamin and iron deficiency. This can be prevented with the help of a good diet. At the same time overloading on iron can also cause problems. Anemia can be diagnosed with the help of blood tests and physical exams as well.