Normal body temperature is not fixed, unchanging, with the gender, age, day and night, movements and changes in mood and other factors not budge, but this change generally within the normal range.
Normal Body Temperature
In General slightly higher female than male, female early mild rise early in the menstrual cycle and pregnancy, ovulation is low, such volatility related primarily to progesterone secretion cycle, body fat for women is higher than the male should also be a reason.
Age factors
Neonatal body temperature changes under the influence of the outside temperature. Neonatal CNS development have not been perfected, not exactly the sweat glands of the skin development and poor thermoregulation functions, volatile. Children high metabolic rate, body temperature may be slightly higher than the adult. Older people due to the low metabolic rate, body temperature on the low side.
Day and night
General 2-6 body temperature minimum in the morning, next 4-8 highest body temperature, which range between about 0.5-1. The days and nights with regular fluctuations, is the result of long-term lifestyle such as activity, metabolism, blood circulation, appropriate periodic changes the form. Long term night worker, cyclical fluctuations occur at night temperature rises, lower body temperature during the day.