“Nearly everything that is going on in your body reveals itself in some way in the fluids in your mouth, whether it is from saliva, mucous or the plaque on your teeth.”

—Daniel Malamud, Penn professor of biochemistry, on research that suggests saliva could be used instead of blood to test patients for diseases.
(The Irish Times, Feb. 18, 2005) .

Originally published on March 17, 2005