Following your doctor’s instructions is the most important part of preparing for a blood test. Sleeping well, staying hydrated, and avoiding certain foods and drinks can also provide benefits. Blood ...

Are you getting the internet speed you’re paying for? Should you blame a slow connection on your Wi-Fi router or internet provider? Can your internet handle things like online gaming or livestreaming?

Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to books covering a wide spectrum ranging from Apple devices and cameras to photo editing software and ...