Hypothyroidism drowsiness should first clarify the cause of the disease, and then target the cause of treatment. If the drowsiness is caused by hypothyroidism, thyroxine supplementation can be prescribed to relieve the symptoms. Hypothyroidism, known as hypothyroidism, is a generalized low metabolic syndrome caused by hypothyroidism or thyroid hormone resistance due to various reasons. Patients may experience neurological symptoms such as memory loss, poor concentration, and drowsiness. Currently hypothyroidism clinics often maintain thyroid hormone levels through thyroid hormone supplementation, thus relieving the symptoms associated with hypothyroidism. Levothyroxine is currently the primary replacement therapy medication for this condition and is generally required for life. It is usually given in small doses and gradually increased according to the patient’s age and heart function, until the dose can be completely replaced. When the drug is taken until the thyroid level is normalized, the symptoms of drowsiness can usually be improved. In addition, patients also need to develop good living habits, choose high-quality protein food, appropriate exercise, and improve sleep quality. If the degree of drowsiness is serious and accompanied by other diseases such as cardiovascular system, patients should seek medical treatment as soon as possible, and relevant treatment should be carried out under the diagnosis and guidance of doctors.