Add Yahoo as a preferred source to see more of our stories on Google. In the late 1950s, dentist and US Navy Capt. Kirk C. Hoerman, then a young man in his 30s, attempted to answer a bold question: ...

At first glance, saliva seems like pretty boring stuff, merely a convenient way to moisten our food. But the reality is quite different, as scientists are beginning to understand. The fluid interacts ...

BUFFALO, N.Y. ­­ ­ ­­— Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.

For decades, female hormone levels were measured using blood tests. 1 But blood sampling is invasive, expensive and is, at times, logistically difficult. Hence, there was a shift towards more ...