Feeling weak and tired and very tired may be due to overwork, insufficient cerebral blood supply, hypothyroidism, anemia, tuberculosis and other reasons.
1. Overexertion: Physiological factors such as strenuous exercise, staying up late for a long time, continuous mental tension, excessive stress, and long hours of work lead to overexertion, which can cause the above symptoms.
2. Insufficient blood supply to the brain: carotid artery, vertebral artery atherosclerosis, cervical spondylosis and other factors lead to insufficient blood supply to the brain, and the brain is in a state of ischemia and hypoxia for a long period of time, which will lead to the above symptoms.
3. Hypothyroidism: When hypothyroidism occurs, the synthesis and secretion of thyroid hormones are reduced, the metabolism of tissue cells is low, and the energy intake and utilization are insufficient, so the above symptoms will appear.
4. Anemia: Hemolysis, blood loss, iron deficiency, vitamin B deficiency, etc. cause various types of anemia, the content of red blood cells and hemoglobin in the blood decreases, and the tissues are deprived of blood and oxygen, resulting in the above symptoms.
5. Tuberculosis: Mycobacterium tuberculosis infection of lung tissue causes specific inflammatory reaction, a large number of tuberculosis bacilli growth, division and reproduction need to consume a large amount of energy, resulting in the body’s depletion of nutritional deficiencies, which leads to the emergence of the above symptoms.
Feeling tired and fatigue may be related to a variety of factors, it is recommended to consult a doctor as soon as possible to clarify the diagnosis.