The first sign is often from a prostate-specific antigen (PSA) blood test. If your PSA level is high, you may get a biopsy to find out whether you have prostate cancer or something else like ...

But after a couple of years of work, xMEMS has arrived at the next generation — ultrasound through a solid-state speaker. This tiny, 1mm-thin speaker is called Cypress, and after listening to it ...