Dizziness and drowsiness may be due to the body being in a subhealthy state, related to long-term overwork, lack of sleep or poor sleep quality, mental stress and so on, which will be gradually relieved by paying attention to the adjustment of lifestyle, but it should also be noted that there are some disease factors that can also lead to dizziness, weakness, sleepiness and other symptoms. 1, cold: it is a very common disease, the common cold is usually The pathogen invades the human body and causes dizziness, weakness, nasal congestion, runny nose, coughing, coughing and other symptoms, which can be treated with cold medicine to relieve the symptoms; 2, anemia: when the body becomes anemic, the concentration of hemoglobin decreases, the ability to carry oxygen is also weakened, and human tissues, including brain tissue, do not get enough blood and oxygen supply, there will be dizziness, weakness, no spirit The symptoms of dizziness, weakness and lack of energy will be induced by the reduced secretion or synthesis of thyroid hormone, which affects the metabolism of sugar, fat and protein, thus inducing dizziness, weakness and lack of energy; 4. It is recommended to go to the hospital immediately if the patient has impaired consciousness; 5, other: such as hypokalemia, hyponatremia, myasthenia gravis, myotonic dystrophy, etc. can also cause patients to be tired and dizzy, and need to go to the hospital for relevant examinations and targeted treatment in a timely manner.