Elderly people’s body heat may be caused by heart fire, liver fire and kidney yin deficiency from the perspective of traditional Chinese medicine. 1. Excessive fire of the heart: the body heat of the elderly may be caused by the excessive fire of the heart. If the patient often eats warm and spicy food during the day, it may lead to the body heat, dry stools, mouth and tongue sores and other related symptoms, so that the patient will have a body heat situation. 2. Excessive liver fire: Excessive liver fire may be caused by staying up late, bad emotions, dry weather, etc., and the patient will show symptoms such as body heatiness, loss of appetite, palpitations (rapid heartbeat, often accompanied by panic), chest tightness, and other related symptoms. 3. Kidney Yin Deficiency: When the patient is deficient in kidney yin, it may lead to insufficient yin fluid in the body, resulting in symptoms of internal deficiency heat, such as insomnia, hot flashes (a burst of heat) night sweating (abnormal sweating after falling asleep, and sweating stops after waking up), and weakness of limbs, etc. The patient should go to the hospital when feeling unwell. The patient should go to the hospital after the discomfort occurs, and then do the relevant treatment after the TCM doctor identifies and determines the cause of the body dryness and heat.