A single hair can give a lot of information about you. The hair on your head grows 2-6 years before falling out. Many tiny blood vessels feed the base of each strand. During that time, your hair shaft ...

Diagnosing lupus can be challenging. There’s no single test that can give doctors a “yes” or “no” answer. Sometimes it can take months—or even years—to gather all the right information. Making a lupus ...