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Interestingly, here in Japan, I learned that they consider a lower body temperature normal. I always learned in France that the normal body temperature was 37.7

by Iv 7y ago

Interestingly, here in Japan, I learned that they consider a lower body temperature normal. I always learned in France that the normal body temperature was 37.7C, some people say 37.3. Can be lower just after waking up. For my Japanese wife, 37C means you may starting to get sick. you should be in the 36s. Just an anecdote, but the normal temperature could vary among population, latitude, weather conditions...

trhway 7y ago
In USSR/Russia 36.6C has always been considered ideally normal (and until this very moment i thought that it was normal for the whole human race :). The same way - crossing 37C means you're sick. It probably may also depend on where the temperature is taken. In USSR/Russia it is in the armpit, which is probably of lower temperature than anus/mouth which is where the temperature is taken in many other countries.
brutt 7y ago
Normal body temperature is 36.6°C (97.9°F) even in France, but can be up to 37°C sometimes or in some places. Temperature of 37.7°C is symptom of sickness. https://www.bmj.com/content/359/bmj.j5468 https://www.bmj.com/content/359/bmj.j5468 Results: In a diverse cohort of 35 488 patients (mean age 52.9 years, 64% women, 41% non-white race) with 243 506 temperature measurements, mean temperature was 36.6°C (95% range 35.7-37.3°C, 99% range 35.3-37.7°C). Several demographic factors were linked to individual level temperature, with older people the coolest (–0.021°C for every decade, P<0.001) and African-American women the hottest (versus white men: 0.052°C, P<0.001). Several comorbidities were linked to lower temperature (eg, hypothyroidism: –0.013°C, P=0.01) or higher temperature (eg, cancer: 0.020, P<0.001), as were physiological measurements (eg, body mass index: 0.002 per m/kg2, P<0.001). Overall, measured factors collectively explained only 8.2% of individual temperature variation. Despite this, unexplained temperature variation was a significant predictor of subsequent mortality: controlling for all measured factors, an increase of 0.149°C (1 SD of individual temperature in the data) was linked to 8.4% higher one year mortality (P=0.014).
- Iv 7y ago
  I found something super interesting! The EN and FR wikipedia state different values. FR: > On considère généralement que la température basale usuelle du corps humain est de 37,0 °C, [...] Une température corporelle normale se situe entre 36,1 °C et 37,8 °C Baseline : 37C. Normal range, [36.1 - 37.8] EN: No baseline, provided,just a range: > The normal human body temperature range is typically stated as 36.5–37.5 °C (97.7–99.5 °F). The French version explains that for a long time, until the 1980s, everybody assumed correct a study made in 1868 about the body temperature that found 37.0 - 37.5 to be the normal range in healthy adults. It suggests that the declining prevalence of infections in the population may be the exaplanation of the lowering of the average body temperature. After all, one of the main causes of rising temperature is an active immune system. Lower temperatures in the population are actually good news.
Nasrudith 7y ago
That has me wondering how much average height and square-cube law implications like surface area ratio changing what they consider "the norm" has to do with it. BMI as a health metric is downright lazy mathematically in that it doesn't use a cubic portion and thus gives more undue "slack" in its judgement for shorter and less for taller. I am uncertain what aspect if any dominates. It could be that without sufficent HVAC exposure the local climate causes the body to adapt and dominate. Granted not allowing that adaptation may not just be "softness" and "disconnection from nature from arrogance". Apparently according to some accounts colonialists in the tropic were looked upon by natives as fools and lunatics for being physically active during the hot and bright sun instead of resting then and saving activity for when it is cooler.

by Iv 7y ago

trhway 7y ago

In USSR/Russia 36.6C has always been considered ideally normal (and until this very moment i thought that it was normal for the whole human race :). The same way - crossing 37C means you're sick. It probably may also depend on where the temperature is taken. In USSR/Russia it is in the armpit, which is probably of lower temperature than anus/mouth which is where the temperature is taken in many other countries.

brutt 7y ago

Normal body temperature is 36.6°C (97.9°F) even in France, but can be up to 37°C sometimes or in some places. Temperature of 37.7°C is symptom of sickness. https://www.bmj.com/content/359/bmj.j5468 https://www.bmj.com/content/359/bmj.j5468 Results: In a diverse cohort of 35 488 patients (mean age 52.9 years, 64% women, 41% non-white race) with 243 506 temperature measurements, mean temperature was 36.6°C (95% range 35.7-37.3°C, 99% range 35.3-37.7°C). Several demographic factors were linked to individual level temperature, with older people the coolest (–0.021°C for every decade, P<0.001) and African-American women the hottest (versus white men: 0.052°C, P<0.001). Several comorbidities were linked to lower temperature (eg, hypothyroidism: –0.013°C, P=0.01) or higher temperature (eg, cancer: 0.020, P<0.001), as were physiological measurements (eg, body mass index: 0.002 per m/kg2, P<0.001). Overall, measured factors collectively explained only 8.2% of individual temperature variation. Despite this, unexplained temperature variation was a significant predictor of subsequent mortality: controlling for all measured factors, an increase of 0.149°C (1 SD of individual temperature in the data) was linked to 8.4% higher one year mortality (P=0.014).

Iv 7y ago
I found something super interesting! The EN and FR wikipedia state different values. FR: > On considère généralement que la température basale usuelle du corps humain est de 37,0 °C, [...] Une température corporelle normale se situe entre 36,1 °C et 37,8 °C Baseline : 37C. Normal range, [36.1 - 37.8] EN: No baseline, provided,just a range: > The normal human body temperature range is typically stated as 36.5–37.5 °C (97.7–99.5 °F). The French version explains that for a long time, until the 1980s, everybody assumed correct a study made in 1868 about the body temperature that found 37.0 - 37.5 to be the normal range in healthy adults. It suggests that the declining prevalence of infections in the population may be the exaplanation of the lowering of the average body temperature. After all, one of the main causes of rising temperature is an active immune system. Lower temperatures in the population are actually good news.

Nasrudith 7y ago

That has me wondering how much average height and square-cube law implications like surface area ratio changing what they consider "the norm" has to do with it. BMI as a health metric is downright lazy mathematically in that it doesn't use a cubic portion and thus gives more undue "slack" in its judgement for shorter and less for taller. I am uncertain what aspect if any dominates. It could be that without sufficent HVAC exposure the local climate causes the body to adapt and dominate. Granted not allowing that adaptation may not just be "softness" and "disconnection from nature from arrogance". Apparently according to some accounts colonialists in the tropic were looked upon by natives as fools and lunatics for being physically active during the hot and bright sun instead of resting then and saving activity for when it is cooler.