Vital signs, a medical term also called vital signs, include body temperature, pulse, respiration and blood pressure, and are an objective reflection of a person being alive and a measure of the body’s health status. Body temperature, including the core temperature inside the body and the surface temperature of the skin, with the core temperature being higher than the surface temperature. The medical term body temperature refers to the core temperature, which is usually represented by the axillary temperature. Axillary temperature is measured by using a thermometer in the armpit for 10 minutes, with a normal value of 36°C-37°C. Pulse, usually checking the number of beats per minute of the radial artery at the wrist, is not the heart rate, which is the number of heart beats per minute heard with a stethoscope in the chest. In normal people, heart rate and pulse are the same, usually 60-100 beats per minute in adults, but in some patients heart rate and pulse can be inconsistent. Respiration is the number of breaths per minute, one inhalation and one exhalation, usually 12-20 breaths per minute in adults. Blood pressure is expressed by tying a cuff to the arm above the elbow and measuring the pressure in the brachial artery at the elbow. Normal adult high pressure is 90-139mmHg and low pressure is 60-89mmHg.