Millions of Americans suffer from joint pain, with 40 percent saying that it is “very difficult” or they are “unable” to perform common activities like stooping, bending, kneeling or walking a brief distance, according to the Centers for Disease Control...

Bone density scans determine how strong your bones are and if you’re at risk for osteoporosis, a condition that makes your bones weak and more likely to break. Bone density scans, also called bone mineral density (BMD), are noninvasive and...