Body temperature has always been a key vital sign used to judge health in clinic, so in daily life, we are all concerned about whether the body temperature is normal!
Reporter: Recently, when we go in and out of various public places and go home to work, we will go through a link like temperature measurement. Usually the measured temperature is 35~36.7 degrees Celsius. In our conventional cognition, 37 degrees Celsius is the standard of normal body temperature, so why does our body temperature gradually get lower?
Why can't our temperature reach 37 degrees?
Yin Xianghui, Chief Physician, Department of General Medicine, Qinghai Red Cross Hospital
Because it uses the forehead temperature to measure the skin temperature, it does not follow the armpit temperature and oral temperature correctly. Because armpit temperature and oral temperature are not affected by external factors, skin temperature, especially forehead temperature, is affected by skin temperature. For example, it's cold for three or nine days in a row. If you take your temperature indoors immediately, it must be 34.
35 degrees, but this is not the real temperature situation.
That is to say, in our daily life, influenced by the external environment, the temperature measured by temperature measuring gun on the forehead has a certain error. So many people mistakenly think that their body temperature is low.
People's body temperature fluctuates within a certain range. For example, our armpit temperature is measured at most once, ranging from 36 degrees to 37 degrees, so the temperature difference of people will not fluctuate more than one degree with 24 hours.
People's body temperature comes from the heat released during metabolism, which is basically constant, while normal body temperature will change slightly according to different parts of the test. Body temperature will undergo physiological changes with day and night, age, sex, activity, drugs and other factors.
Yin Xianghui, Chief Physician, Department of General Medicine, Red Cross Hospital of Qinghai Province: Generally, the body temperature of girls is slightly higher than that of boys by 0.3 degrees, and then it will change from 0. 1 degree to 0.2 degrees during the menstrual period of women.
The change of body temperature is related to age. Children, especially infants, have higher body temperature than adults because of their high metabolic rate. Because of the low metabolic rate, the body temperature of the elderly is slightly lower than that of the young and middle-aged people. With the increase of age, the body temperature tends to drop slightly. In addition, hypothermia is also related to factors such as low basal body temperature, cold external environment and diseases (such as endocrine disorders). So is it that the immunity will decline when the body temperature is low?
Yin Xianghui, Chief Physician of General Medicine Department of Qinghai Red Cross Hospital: Actually, this is caused by individual differences. Under normal circumstances, some people have low basal metabolic rate, hypothyroidism, obesity, low activity or chronic diseases. Their immunity is relatively low, maybe even lower.
Reporter: The doctor told us that most of the body temperature is constant, so if your body temperature fluctuates greatly, it is likely that your health is red, so you need to pay special attention at this time.
According to the doctor, human body temperature is not only affected by hypothalamus, but also by skeletal muscle, which can release heat, thus affecting human body temperature, so in daily life, we can also regulate body temperature through exercise.