Private companies are capitalizing on this quest for information. Grail’s Galleri blood test screens for more than 50 different types of cancer from a single blood draw, while full-body MRI scans, ...

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 ...

Recent research suggests that blood tests may show markers of oral cancer. But a blood test isn’t enough to confirm an oral cancer diagnosis. A biopsy is the only way to confirm it. Blood tests for ...

A new kind of blood test promises to find cancer early—sometimes even before symptoms appear. The pitch is compelling: a single sample of blood could scan the body for dozens of different cancers at ...

People may prefer to get screened for colorectal cancer with a blood test rather than a colonoscopy. But more than twice as many colorectal cancer deaths would occur with blood-based screening as with ...

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Scientists have developed a highly accurate blood test that can detect brain tumours, including aggressive glioblastomas, with over 90% precision. By identifying specific proteins in the blood, the ...

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 ...

A blood osmolality test measures the blood for the concentration of certain dissolved particles. This test can show whether a person has an irregular balance of fluids in their body. Osmolality tests ...

Researchers say a simple blood test could help flag which older women face a higher risk of dementia long before any symptoms appear. In a new study, published in JAMA Network Open, women with higher ...