Recent research at the University of Murcia explored the potential of using cat saliva as a marker for stress and disease.

San Diego PD rolls out voluntary saliva drug tests at traffic stops. Learn how the SoToxa device works, your rights to refuse ...

While people swear by their favorite home remedies, most—including the three described above—remain unproved. Every now and then, however, a piece of folklore is scientifically validated. Sometimes ...