A new ultrasound-based imaging tech has been developed to map the organ blood flow in four dimensions (3D + time) — a level ...

Each time the heart beats, it pumps blood through the brain vessels, causing them to expand slightly and then relax, much like the rise and fall of the blood pulsing through your veins when you feel ...

Acetylcholine regulates blood flow, but the source of blood acetylcholine has been unclear. Now, researchers at Karolinska Institutet have discovered that certain T cells in human blood can produce ...

Researchers at the University of Cambridge have successfully developed a stem cell-based model capable of producing human ...

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, ...

Reduced blood flow can cause unpleasant symptoms, such as pain, muscle cramps, numbness, digestive issues and coldness in the hands or feet. In addition to those with poor circulation, athletes and ...

Early symptoms of Peripheral Artery Disease include leg pain, numbness, and slow healing. Know how to spot poor blood ...