In normal adults, the normal range of respiratory rate at rest is 12-20 breaths/minute, and in newborns, it is about 44 breaths/minute. In general, the normal adult respiratory rate is not less than 12 times / min nor more than 20 times / min, and the ratio of respiration to pulse is about 1:4; newborns respiration is faster than adults, about 40-60 times / min, and will gradually slow down with the growth of age, gradually close to the frequency of adults. Athletes and the elderly have a slightly slower respiratory rate. The respiratory rate is of great clinical importance, and the change of the patient’s respiratory rate can be used to determine whether or not there is a respiratory disease. If you have any respiratory discomfort, you should go to the hospital in time and follow the doctor’s instructions for better treatment of the disease.