Your "normal" blood work is hiding a treasure trove of information about what's really wrong—and how to fix it. Dr. Kylie Burton reveals how to read your everyday lab results through the lens of brain function, because your brain controls everything else in your body.

When 18-year-old Sarah couldn't get out of bed despite being an honor student and athlete, doctors suggested depression. When Erica woke up with a frozen shoulder that wouldn't move, specialists focused on the joint. When Rebecca struggled with fertility for two years, her "normal" hormone tests left everyone baffled.