Blood flow problems within the lungs could be driving long COVID in some children, according to scans using an advanced form of MRI. Children and teens with long COVID appear to have significantly ...

Children and teens with long COVID appear to have significantly reduced blood flow through their lungs, researchers reported in the journal Radiology. This could cause fatigue—one of the more common ...

San Antonians carry more blood clot risk than the average American.

Every year, nearly 900,000 Americans are affected by venous thromboembolism (VTE), a condition in which blood clots form in ...

Pulmonary embolism (PE) is the third most common heart and blood vessel disease after heart attack and stroke. Yet it is frequently misdiagnosed as pneumonia, a mistake that continues to claim lives.

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...

Add Yahoo as a preferred source to see more of our stories on Google. The study's results might explain why kids with normal breathing still suffer from fatigue related to long COVID, researchers said ...