Patients with a cold who have fever symptoms can have an effect on their heart rate, which in turn can cause symptoms of an increased heart rate. The average heart rate increases by 12-18 beats per minute for every 1°C increase in body temperature, a phenomenon related to the function of the heart. The heart is the blood pump in the body, through the contraction and diastole of the heart to transport blood throughout the body, to send oxygen and nutrients to the cells, and to take away the waste generated by cell metabolism. If the body’s metabolism increases, more nutrients and oxygen will be needed and more metabolic waste will be produced, so the heart will beat faster. If the body temperature rises when you have a fever, you can treat the cause. If the body temperature is greater than 38.5℃, take oral ibuprofen or acetaminophen to reduce the fever as prescribed by your doctor. If the body temperature is 37.3℃-38.5℃, physical cooling can be done by drinking more water and wiping cold water on the forehead, armpits, the root of the thighs and other places with rich blood vessels, and the heart rate will slowly decrease after the body temperature drops. Patients with a rapid heart rate must actively rest in bed and refrain from heavy physical work to avoid aggravating the discomfort of the heart. Active lifestyle adjustments can help to effectively relieve the symptoms of the cold.