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 ...

Testing a person’s blood for a type of protein called phosphorylated tau, or p-tau, could be used to screen for Alzheimer’s disease with “high accuracy,” even before symptoms begin to show, a new ...

The FDA recently cleared the Lumipulse blood test for early diagnosis of Alzheimer's disease in people 55 and over with memory loss. The noninvasive Lumipulse blood test measures the levels of two ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...