Is the Galleri multi-cancer blood test worth it? A doctor explains real-world performance data and explains why no major medical society recommends the test for screening.

People with aphasia have more trouble coming up with words they want to use when they're prompted by images and words that carry negative emotional meaning, new research suggests. People with aphasia ...

Sykes also cautions against the opposite mistake: overinterpreting a positive result. Subclinical exposure to Leptospira species is common, meaning a positive test—such as a visible red line or blue ...

Bayes' theorem is a statistical formula used to calculate conditional probability. Learn how it works, how to calculate it ...