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Spit is critical for our health. Actually. Spit is critical for our health. Actually. Be Smart is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, ...

IRVINE — The vials of spit arrive on dry ice from all over the country. There’s drool from babies exposed to second-hand tobacco smoke. Saliva from military nurses training for combat rescue. Even the ...

BOSTON (CBS) - A new study finds that examining a patient's saliva may reveal whether they have had a concussion. When someone hits their head, you often have to rely on self-reported symptoms or ...

A saliva test could fast track heart attack diagnosis, according to preliminary research. The innovative technique requires patients to spit into a tube and provides results in 10 minutes, compared to ...