Typically, when people say they’re trying to lose weight, what they actually mean is they’re trying change their body composition—they're trying to be leaner. A lower number on the scale could be an ...

Bone density scans, often called DEXA scans, measure how strong your bones are and help detect risks for osteoporosis and fractures. They provide T-scores and Z-scores, which compare your bone density ...

Bone density scan results explain the strength of your bones and assess your risk of breaking a bone. Z-scores are used as the measure for adults under 50 and children. Share on Pinterest izusek/Getty ...