The best time of day to take your temperature and control your fever

Plunged into the maelstrom of the coronavirus, it is natural that all of us in the last three months have felt badly on more than one occasion. Maybe it was because of the disease or maybe it was just paranoia, because you probably know at least one person who during the worst moments of the disease had a fever of pure fear or who did not stop continuously putting on the thermometer to find out if he really had a fever.

We don't think you have forgotten, but just in case: the normal average temperature is 36.5ºC approximately, although there are people who have it lower and higher. From 37 to 38ºC we can consider that the patient has a few tenths or fever. Between 38-39ºC: there is fever but it is moderate. From 39ºC to 40ºC: it is high. 41ºC or more: the temperature it is too high and can become dangerous, as it can cause cellular stress and heart attack.

The best time to take a fever is in the evening, from 16:00 to 21:00, and the normal average temperature is 36.5ºC.

If you've been with someone lately afflicted with COVID-19, it is normal that you are more aware of your temperature, as fever is one of the clearest symptoms of the disease, along with cough. However, it fluctuates throughout the day and you should know it, because doctors indicate that we do not have the same body temperature when we get up as when we go to bed, so when is the ideal time to measure it?

In recent statements to the 'New York Times', Professor of Preventive Medicine and Infectious Diseases, William Schaffner, said that the best time to take your temperature is in the late evening, from 16:00 to 21:00, approximately: "That does not mean that you only have to take the thermometer between those hours," he clarified. "Especially if you have been in contact with someone with COVID-19, but definitely, if you are doing a control, it is essential that one of them be done at night."

Keep in mind, however, that fever is not the disease itself, but a sign that your body is fighting it

Probably, on some occasion when you have been ill, you will have noticed that your fever seemed to rise in the evening. Actually, it is not fever that rises during those hours, but body temperature, regardless of whether you are sick or not. This is due to circadian rhythms, a series of biological processes that occur every day in our body at regular intervals of time. Between 2:00 and 6:00 in the morning our body registers the lowest temperatures, and these increase until reaching their maximum between the hours advised by Dr. Schaffner. So, if you have a fever that day, at those hours you have to add that increase in body temperature.

Keep in mind, however, that fever is not the disease itself, but a sign that your body is fighting against it. In addition, as we said at the beginning, the temperature can vary greatly between some people and others, and, according to the latest studies, as the years and generations pass, the temperature decreases: specifically, it falls 0.03º per decade. They assure that it is due to the increase in life expectancy and the progressive improvement of health systems. And if you doubt where you should put it to measure it, the most appropriate place is the rectum or even the groin, but if you are a little scrupulous the next one is still the most common area to know how your body is.

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