1. Celiac Disease. Fatigue is one of the symptoms (for example, along with diarrhea, anemia, and weight loss) that may manifest celiac disease: a chronic inflammation of the small intestine caused by the ingestion of gluten in genetically predisposed people. Gluten is a substance found mainly in cereals.
2. Anemia. Iron deficiency is one of the most common causes of fatigue. Anemia can affect both men and women, particularly those in post-menopausal, pregnant, or in the days of menstruation. It is manifested by a feeling of heaviness and muscle fatigue immediate, even in performing simple tasks.
3. Chronic Fatigue Syndrome. It is a severe fatigue and debilitating condition that lasts for months. It occurs with a sore throat, headache, joint and muscle pain.
4. Sleep Apnea. During sleep, the throat tends to shrink or close with consequent repeated interruptions of breathing. Sleep apnea and snoring involve continuous awakenings resulting in tiredness the next day. Particularly common in overweight, smoking and alcohol consumption can worsen.
5. Hypothyroidism. Thyroid dysfunction due to low levels of thyroxine in the body resulting in fatigue. It is also likely to experience an increase in weight and you experience muscle pain. Hypothyroidism affects mostly women, especially with increasing age.
6. Diabetes. Fatigue is one of the characteristic symptoms of diabetes, a chronic disease due to an excess of sugar in the blood. Other symptoms may include: increased frequency to go to the bathroom, thirst and weight loss.
7. Mononucleosis. Mononucleosis is a viral infection that manifests as fatigue, fever, sore throat and swollen glands. The symptoms may regress within 4-6 weeks, but fatigue can persist for several months.
8. Depression. A depressive condition can also affect the state of health, with a drop of energy and a tendency to tire quickly. Depression can also affect the quality and quantity of sleep, resulting in daytime fatigue.
9. Restless Legs Syndrome. This syndrome can manifest itself with symptoms dependent leg, during the night: the need to move them all the time, pain, legs moving jerkily spontaneously. This condition affect nighttime sleep and is a source of fatigue the next day.
10. Anxiety. Be anxious in some specific situations may be normal, but some people experience a state of constant anxiety and uncontrolled, such as to affect everyday life. It is the generalized anxiety disorder, which is also characterized by a fatigue condition.