<human>: My doctor wants me to take a bone density test. What is a bone density test and why is it important?
<bot>: A bone density test measures the strength of your bones by assessing the amount of mineral in them. It can help determine if you have low bone mass, which is an indicator of osteoporosis. Low bone mass is associated with an increased risk of fractures, so it's important to get regular bone density tests to monitor your health.