A low red blood cell count, a condition known as anemia, can make exercising extremely difficult due to fatigue and a lack of energy. There are a number of different causes of anemia, and often it can be a symptom of a larger medical condition. Those who suspect they might be anemic should schedule an appointment with their doctor.
Anemia
Anemia is a condition characterized by a lack of the healthy red blood cells needed to carry oxygen throughout the body. There are many different kinds of anemia, ranging from very mild to life-threatening. The condition can be temporary or it can be chronic. The most common forms of anemia can be treated with supplements and a change in diet, but some of the more serious forms require medical attention and treatment.
Causes
The cause of anemia depends on the type. Iron deficiency anemia is due to a low level of iron in your body, while vitamin deficiency anemia is the result of low levels of folate and vitamin B-12. These types of anemia can be easily addressed by eating a healthy diet and taking supplements. Anemia can also be a symptom of the inherited condition sickle cell anemia, which causes the body to produce misshapen red blood cells that quickly die. Other forms of anemia can be due to chronic diseases such as cancer, HIV or AIDS, rheumatoid arthritis or bone marrow diseases.
Symptoms
The most common symptom of anemia is fatigue. Without enough red blood cells to deliver oxygen to all your tissues and organs, the body tires easily and can't perform daily activities without getting run-down. Anemia is also characterized by pale skin, a fast or irregular heartbeat, shortness of breath, chest pain, dizziness, cognitive problems, headache, and cold hands and feet.
Exercise
Exercising while anemic can be extremely challenging due to lowered energy levels, and most people won't be able to reach their normal performance level. Many people will find they also feel nauseous, have a sense of burning or heaviness in their legs, and have trouble doing speed work. Depending on the severity of the anemia, some people may experience a sense of lightheadedness or a headache.
