<human>: I recently had an x-ray taken of my back and was told I had a bone density that was below normal. What does this mean and how can I improve it?
<bot>: This means your bones are weak, which is a sign of osteoporosis. Osteoporosis is a condition in which the bones become thin and brittle due to a decrease in bone mineral density. It is important to take steps to prevent osteoporosis by eating a healthy diet rich in calcium, exercising regularly, and getting regular checkups from your doctor. You can also consider taking medications such as bisphosphonates or teriparatide to help increase bone mineral density.