'Treasure in saliva' may reveal deadly diseases early enough to treat them

[Northerner]

Research could lead to a simple saliva test capable of diagnosing -- at an early stage -- diabetes and cancer, and perhaps neurological disorders and autoimmune diseases. The study, the most comprehensive analysis ever conducted of RNA molecules in human saliva, reveals that saliva contains many of the same disease-revealing molecules that are contained in blood.

http://www.sciencedaily.com/releases/2014/10/141029204401.htm