The normal range for blood pressure in an adult is between 90/60 and 120/80 millimeters of mercury, says MedlinePlus. Normal breathing is between 12 to 18 breaths per minute, and a healthy heart beats 60 to 100 times per minute. Normal core temperature falls between 97.8 and 99.1 degrees Fahrenheit.
Normal vital sign measurements assume the body is at rest, says MedlinePlus. The measurements potentially vary quite a bit if the person is active at the time he records them. They also change depending on the person's sex, state of health and age.
Core temperature varies due to hormone levels, time of day and which spot on the body a person uses to take it, says WebMD. A rectal temperature is most accurate and often slightly higher than an oral measurement.