Normal Temperature of Human Body in 2021

Normal temperature of human body comes to mind if we touch any person’s skin to find abnormalities. You may have noticed that people saying the “normal” body temperature is 98.6°F (37°C). Actually this number counted only an average. Your body temperature could slightly rise or down as the time pases.

When a person he/she takes a body temperature reading that’s above or below the average then it doesn’t automatically mean your health is in danger or you’re sick. There could be a number of factors that influence your body temperature, for example, it includes your age, time of day, sex, and as well as activity level.

Normal Temperature of Human Body-Is this the body temperature the same for all ages?

It depends on your body’s ability that your body regulate temperature changes as you get older. Generally, people who are old age have more difficulty conserving heat. As well as there are also chances more likely to have lower body temperatures.

Below provides details on average body temperatures based on age:

Body temperature in babies and children. In babies and children, the average body temperature remains ranges from 97.9°F (36.6°C) to 99°F (37.2°C).

Body temperature in adults. Among adults, the average body temperature remains ranges from 97°F (36.1°C) to 99°F (37.2°C).

Body temperature in adults over age 65. In older adults, the average body temperature remains lower than 98.6°F (37°C).

It is better to keep always in mind that normal body temperature varies from man to man. Your body temperature could be up to 1°F (0.6°C) up or down than the guidelines above. Measuring your own normal range could make it easier to understand when you have a fever.

Factors that could affect your temperature?

Famous German doctor Carl Wunderlich who made a marvelous achievement and diagnosed the normal body temperature of 98.6°F (37°C) during the 19th century. But in 1992, results from a reliable source suggested abandoning this average in favor of a slightly lower average body temperature to 98.2°F (36.8°C).

The scientists pointed out that our bodies tend to warm throughout the whole day. As a result, you could face a fever in the early morning that might occur at a lower temperature instead of a fever that appears later in the day.

Actually, time of day isn’t the single factor that could influence temperature. As the ranges described above indicate, it is observed that younger people tend to have higher average body temperatures. All this is because our ability to control body temperature decreases with age.

Physical activity levels also influence body temperature, as well as certain foods or drinks, which could also influence body temperature. Body temperature in women is influenced by hormones as well, and could up or down at different points meanwhile the menstrual cycle.

Adding, how you take your temperature could affect the reading numbers. Armpit readings could be up to an entire degree downs than a reading from the mouth.

And temperature readings from the mouth usually lower than readings from the ear or rectum.

Read more about Normal Body Temperature Range?

What are the symptoms of a fever?

A person is in fever when higher-than-normal reading is available on the thermometer.

Below is the list of among adults, babies, children, thermometer readings are usually a sign of a fever:

rectal or ear readings: 100.4°F (38°C) or up

mouth readings: 100°F (37.8°C) or up

armpit readings: 99°F (37.2°C) or at rise

Research from 2000 elaborated that fever thresholds for seniors in age, adults could be lower, actually people in older age have more difficulty conserving heat.

There is usually a sign of a fever in general, a reading that’s 2°F (1.1°C) above your normal temperature.

Fevers could be lead by other signs and symptoms, which includes:

hot or flushed skin


body aches

chills, shivering, or shaking

loss of appetite



fatigue and weakness

increased heart rate

Although a fever could leave you feeling pretty bad, it’s not dangerous at all. It’s simply a signal that your body is fighting with something bad in your body. Most of the time, we could have relaxation with “rest is the best medicine”.

After all, you could call your doctor if:

You measure a temperature over 103°F (39.4°C).

You’ve had a continuous fever for more than 3 days straight.

Your face such symptoms listed as: 



a stiff neck

chest pain

swelling in the throat

a rash

difficulty breathing

If the babies and younger children have fever, it could be hard to know when to ask a doctor. You could call your pediatrician if:

Your baby’s age is less than 3 months and he/she has a fever.

Your baby’s age is between 3 months and 3 years and he/she has a temperature above 102°F (38.9°C).

Your child’s age is 3 years or above and has a measured temperature of 103°F (39.4°C).

Ask for medical care if your baby or child has a fever and:

other symptoms, like a stiff neck or serious headache, sore throat, or feeling pain in the ears.

repeated vomiting and diarrhea

an unexplained rash

signs of dehydration

You could also read about What Is Normal Blood Pressure in 2021?

What are the signs and symptoms of hypothermia?

Hypothermia is a severe condition that appears when you lose too much body heat. For adults, a body temperature that downs below 95°F (35°C) is a symptom of hypothermia. Most people think and associate hypothermia with being outside in cold weather for a long period of time. But hypothermia could occur indoors, too.

Adults and babies are more susceptible. It is to notice that for babies, hypothermia could occur when their body temperature is 97°F (36.1°C) or down. Hypothermia could also be a serious problem in a poorly heated house in winter or could also in an air-conditioned room in summer.

Other signs and symptoms of hypothermia include:

slow, shallow breath


a weak pulse

slurred or mumbled speech

low energy or sleepiness

poor coordination or clumsiness

loss of consciousness

confusion or memory loss

bright red skin that’s cold to the touch (in babies)

Visit your doctor if you measured a low body temperature with any of the symptoms above.

When to visit your doctor

Normally a fever isn’t a cause for seriousness. In most of the cases, a fever goes away if a person takes a few days of rest. After all, when your fever rises too high, lasts too much time, or is accompanied by serious symptoms, ask for treatment.

Your doctor then asks questions about your signs. Your doctor could perform or order tests to examine the cause of the fever. Dealing with the cause of the fever could help your body temperature back to normal.

Another side of the picture is a low body temperature could also be cause for concern. Hypothermia could be life threatening if left in dust. Ask for medical assistance as early as you feel symptoms  of hypothermia.

To examine hypothermia, your doctor could use a standard clinical thermometer and watch for physical symptoms. They could use a low-reading rectal thermometer if they need.

It is observed in some cases, your doctor could order a blood test to verify the cause of your hypothermia, or to examine for infection.

In normal cases, hypothermia could be harder to investigate but easier to treat. Heated blankets and fluids having warm properties could restore heat. For more serious cases, other treatments including blood rewarming and as well as using warmed intravenous fluids.

I think now you could better understand the normal temperature of human body. Feel free to suggest us 

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