Around 2 pm, the environment and temperature are the highest. After a morning's activity, the metabolism of the human body is at its peak. In addition to consumption, it will also replenish energy through diet and drinking water, and the thermal effect of food will also raise the temperature of the human body. At 4 o'clock in the morning, all functions of the human body belong to the rest stage, and all organs are in a low-consumption dormant state. At this time, the body's metabolism is the slowest, and the lowest temperature in the morning will also lead to hypothermia.
Extended data:
There is still a gap of a few tenths of a degree between the maximum normal temperature and the fever temperature, which is the normal fluctuation of human body temperature. You know, normal body temperature is not fixed at a certain value. For example, the normal body temperature of children will fluctuate with age, activity and different time of day, especially for infants under 1 year. The thermoregulatory center is not fully developed, and the body temperature will fluctuate greatly with the influence of activities or environment.
The American Academy of Pediatrics (AAP) points out that anal temperature, ear temperature and oral temperature are greater than or equal to 38℃, indicating fever. The standards of anal wetness and ear temperature given by Mayo Clinic in America are the same as those given by American Academy of Pediatrics. Mayo Clinic believes that the oral temperature exceeds 37.8℃ and the underarm temperature exceeds 37.2℃, indicating a fever. Although there are some differences in the definition of fever body temperature in different medical institutions, the differences are very small.