Ignoring subtle body signals can be risky, as they might indicate serious health issues. Recurring headaches, easy bruising, unexplained weight loss, ...

The U.S. FDA recently approved a new blood test to diagnose Alzheimer’s disease. The test, called Lumipulse, measures two proteins in plasma: pTau217 and ß-Amyloid 1-42. These proteins clump together ...

ORLANDO, Florida — Inappropriate orders for the 1,25-dihydroxy vitamin D test have been increasing in recent years, according to the authors of a paper being presented at the College of American ...

The latest data for high school seniors offers a grim picture of where America is headed in reading and math, Winston writes.

Scientists discovered that vitamin D2 supplements can lower levels of vitamin D3, the form the body uses most effectively. Unlike D2, vitamin D3 enhances the immune system’s first line of defense ...

They may recommend taking a high dose of vitamin D for the first few weeks just to try and get you back to normal. You’ll want to test again about six months later to see if that supplementation was ...

The best way to tell if you’re getting what you’re paying for each month is by running a simple internet speed test. We'll show you how. Joe Supan is a senior writer for CNET covering home technology, ...