@alivenosa
HOLY GRAIL: Without a definitive test such as a blood sample, psychiatrists rely on interviewing patients about their symptoms, which can lead to dangerous misdiagnoses.
RACHEL BARRETT/GALLERY STOCK
A BRAIN TUMOR appears as a malformed blob on a brain scan, shining white among the surrounding gray tissue—a certain and devastating diagnosis. Doctors can begin treatment immediately, trying to save the most important organ in the body. The brain, however, is also vulnerable to many more, much less visible ailments.