Saliva tests carried out at home are better at identifying men who are at higher risk of prostate cancer than the standard blood test, new research suggests. The at-home test could identify ...

Many of these tests work by looking at distinct changes to the DNA in a patient's blood or saliva. These changes become more abundant as cells age, a phenomenon known as the "epigenetic clock." ...

I heard there will be a saliva test to see who has a high risk of getting prostate cancer. I don't see how saliva would have ...