A health assessment is a way to check on your body to make sure it is healthy. During a health assessment a doctor, which is a special kind of doctor who is trained to look after your health, will ask you questions about your body and talk to you about things like what kind of food you eat and how often you exercise. They will also use special machines and tools to measure important things like your weight, your heart rate and your temperature to make sure they are in the right range. They may also take a sample of your blood and test it for diseases. Doing a health assessment helps the doctor to make sure you stay healthy and it helps to detect any problems before they get serious.