Blood

Your morning coffee might do more than wake you up – it could weaken donated blood. A large new study shows caffeine lowers red blood cell quality, making transfusions less effective, especially in patients who need them most.

Scientists have implicated a gut byproduct from meat and other animal foods in the growth of deadly abdominal aortic aneurysms. Often symptomless, as it develops, a ruptured aneurysm has a mortality rate above 80%. And currently, treatment is limited.

From vampire legends to lab-grown tissue, the idea that young blood can reverse aging is no longer pure myth. A new study shows that proteins secreted by bone marrow cells, triggered by young blood, can rejuvenate aging skin in the lab.

In a groundbreaking development, French scientists have identified the world’s rarest blood group, known as Gwada-negative. It's a blood group so rare that only one woman in the world is known to have it.

Diagnosing celiac disease often means exposure to the thing that makes you sick, which can be debilitating. It may soon be simpler and pain-free, with a first-of-a-kind test that can detect and gauge the severity of the disease in a test tube instead.

The first blood test for Alzheimer's disease detection has been green-lit by the US Food and Drug Administration, providing a simpler, quicker and less invasive method of diagnosis and speedier intervention. It's a milestone moment for medical science.

Scientists at Oregon Health and Science University (OHSU) have developed a new blood test for pancreatic cancer, one of the most deadly forms of the disease. Tests showed up to 85% accuracy in detection, even in early stages.

The body has a remarkable ability to heal injuries, but it has its limits. Now scientists have developed a way to improve on the natural process, making implants created from a patient’s own blood to regenerate injuries, even repairing bone.

When a patient's blood flows through catheters, stents or other medical devices, there's always a risk that harmful clots may form. An experimental new bio-inspired coating could keep that from happening, without the use of blood-thinning drugs.

Nobody enjoys giving blood samples, but it’s a necessary part of doctor visits. Soon we might not have to, thanks to a new device that can isolate biomarkers for different diseases using sound waves, from a single drop of blood, in around an hour.

If a medical professional has ever had a hard time getting a needle into your veins, you'll welcome this new gizmo from Adison Technology. By effectively turning your skin transparent, it makes needle sticks more accurate and therefore less painful.

Toxic “forever chemicals” are a major environmental problem, and a growing body of research shows they’re also a major health problem. A new study has found people with higher levels of PFAS in their blood have poorer sleep.