Anemia as a cause
If you are always tired, anemia can be the cause. Anemia can be caused, for example, by disturbed blood formation in the bone market or an increased reduction or loss of red blood cells. In addition, however, a lack of vitamin B12, folic acid or iron can cause anemia.
An iron deficiency is the most common cause of anemia: More than ¾ of all anemias are due to iron deficiency. Iron is essential for blood formation because iron is a component of hemoglobin that binds oxygen in the blood. As our blood transports the oxygen through our body, if there is iron deficiency, it will provide less oxygen to the cells. If the brain is supplied with too little oxygen, you get tired.
Iron is mainly present in foods such as meat, eggs and milk. But there are also considerable amounts of iron in whole-grain products and legumes. Incidentally, if enough vitamin C is present in the body during iron intake, the body can absorb iron particularly well.
Often tired? Sleep apnea as a cause
The term sleep apnea hides shorter respiratory murmurs during sleep. These are caused by a strong relaxation of the musculature of the pharynx. This may cause the upper part of the trachea to collapse and obstruct the flow of air. Such breathing misfires can last up to a minute in extreme cases, then the body beats alarm and you wake up - usually gasping for air - on. However, it often happens that you do not wake up, but only certain body functions are raised.
Through the respiratory misfires, the body and especially the brain are no longer supplied with enough oxygen. In addition, the sleep is no longer recovering from the nocturnal awakening - which you often can not remember the next morning. Because of this, you may experience constant tiredness or even microsleep during the day.
Typical symptoms of sleep apnea include headache and dizziness after getting up, dry mouth and nocturnal sweating. At night, the sleep apnea is also expressed by snoring, which is interrupted by breathing pauses. Often these breathing pauses end with a violent sigh or a particularly loud snore.
The likelihood of sleep apnea is increased by obesity, alcohol consumption and an untrained neck muscles. The latter can be strengthened, for example, by playing a wind instrument.
Vitamin deficiency as a cause of tiredness
If you are always tired, you should think about whether you are eating well enough. Because a vitamin deficiency can cause the body to feel tired and tired.
If you suspect that your fatigue may be due to a vitamin deficiency, you should consult with your doctor. Let him check if you have a vitamin deficiency. If this is the case, your doctor may prescribe appropriate vitamin supplements.
Infectious diseases as a cause
An infectious disease is a disease caused by pathogens. The group of infectious diseases includes, for example, the flu, pneumonia or glandular fever, but also malaria or AIDS.
Since the body is weakened by an infectious disease and he can regenerate best during sleep, you are often tired during the disease. This feeling of fatigue and fatigue can be well observed during a flu. But while flu usually subsides after about a week, other infectious diseases can be more protracted: the symptoms can develop slowly over months or even years. Some infectious diseases such as the Pfeiffer's glandular fever are often not diagnosed for a long time because typical symptoms are missing.
An infectious disease, which is repeatedly associated with constant fatigue, is the sleeping sickness (Trypanosomiasis). In this disease transmitted by the tsetse fly, severe disturbances of the sleep-wake rhythm occur in the second stage of the disease. Popularly, narcolepsy is often referred to as sleeping sickness. It is a neurological disorder that causes repeated sleep attacks over the day. Since the sleep attacks usually occur very suddenly and are accompanied by a strong tonus loss of the musculature, it often falls to the victims.
Often tired? Metabolic diseases as a cause
Certain metabolic diseases such as diabetes or hypothyroidism can also be behind a constant fatigue. So the feeling of being always tired can be related to a poor blood sugar level.
Likewise, a hypothyroid function can ensure that one feels permanently tired. Thyroid hypofunction produces too few hormones in the thyroid gland. This can lead to symptoms such as brittle hair and brittle nails, loss of appetite, increased susceptibility to infections, difficulty concentrating, weight gain and fatigue.
Constant tiredness - cancer as a cause?
If no other cause is found for the constant tiredness, consideration should also be given to whether there could be cancer behind the fatigue. Most cancers are associated with tiredness. In a cancer, the feeling of tiredness usually with other sensations such as weakness, fatigue and weakness. This particular form of fatigue is also called 'fatigue', which in French means languor or fatigue.
Often the feeling of being permanently tired is due not only to the disease itself but also to treatment methods such as chemotherapy. To combat tiredness, it is recommended to have a firm sleeping rhythm and moderate physical activity.
To distinguish from the 'fatigue' in and after cancer is chronic fatigue syndrome (Cronic Fatigue Syndrome). This is a state of exhaustion that lasts more than half a year. In addition to fatigue, Chronic Fatigue Syndrome can cause symptoms such as headache, sore throat, muscle pain, stomach discomfort and concentration problems.
What causes the chronic fatigue syndrome is not yet clear. In addition to other acute stress such as an infection but also mental stress seem to play a role.