Vital signs are measurements that indicate the body's basic functions and overall health. The four primary vital signs are heart rate, blood pressure, respiratory rate, and temperature. These signs help healthcare professionals assess a person's health status and detect any potential medical issues. Monitoring vital signs is essential in various settings, including hospitals, clinics, and emergency situations. Changes in vital signs can signal problems such as infection, dehydration, or heart conditions. Regularly checking these measurements can provide important information for diagnosis and treatment.