Body temperature represents a balance between the heat the body produces and the heat it loses.
The core temperature amongst women is usually slightly higher than that in a man, but the body temperature at their extremities can be lower. One explanation is that usually men have more muscle, whereas women have more fat. Muscles generate more heat, but body fat will store more heat centrally.
The normal core body temperature of a healthy, resting adult human being is considered to be measured at an average level of either:
98.6 degrees Fahrenheit
37.0 degrees Celsius
Body temperature measured on any individual can vary for a number of reasons such as:
An individuals metabolic rate (the higher the metabolic rate the higher the temperature, the slower the metabolic rate the lower the temperature).
The time of day when the temperature is measured (body temperature is usually lower in the morning, due to the rest the body has received, and higher during the day and evening after a day of muscular activity and after food intake).
Slight fluctuations in readings can occur depending from which part of the body the temperature is measured (sites include the anus, the mouth, the arm, the ear, the vagina, the urethra, the skin of the forehead, over the temporal artery)
Hormonal activity (oestrogen affects the hypothalamus which has a role in body temperature regulation, sinking oestrogen levels may cause it to think the body needs cooling when it doesn’t)