The normal temperature of the human body is _________.

37°C

The correct answer is Option (4)- 37°C

The normal body temperature of a healthy human being is approximately 37°C, or 98.6°F. This temperature is considered the baseline or average, but it's essential to note that individual variations can exist. Body temperature can fluctuate slightly throughout the day, with the lowest readings typically occurring in the early morning and the highest in the late afternoon or evening.

Body temperature is regulated by the body's thermoregulatory mechanisms, primarily controlled by the hypothalamus in the brain. These mechanisms ensure that the internal temperature remains within a narrow range conducive to optimal physiological function.

When the body temperature deviates from this normal range, it may indicate a potential health issue. For example, a fever, which is an elevated body temperature, can be a symptom of infection or other medical conditions. Monitoring body temperature is a common clinical practice to assess health and detect abnormalities.