Geneticists can determine your age using a saliva sample

You want to hide your age? If that's the case, you need watch carefully where you spit. Men of science from UCLA discovered a saliva test that will reveal your real age. This new discovery opens doors for a wide range of applications. A fresh patented test could help crime-scene investigators to discover suspect's real age without knowing anything else about them.

"Our approach supplies one answer to the enduring quest for reliable markers of aging," said principal investigator Dr. Eric Vilain, a professor of human genetics, pediatrics and urology at the David Geffen School of Medicine at UCLA.

"While genes partly shape how our body ages, environmental influences also can change our DNA as we age," Vilain said. "Methylation patterns shift as we grow older and contribute to aging-related disease."

Vilain and his squad picture the test turning a forensic creature in crime-scene investigations. By examining traces of spit left in a tooth bite or on a coffee cup, research lab experts may specify the age of a criminal suspect to a five-year range.

The findings can be found in June 22 PLoS One - an online journal of the PLS.