With each heartbeat, blood courses through your body. Some traverse arteries from the lungs back to the heart, and some navigate through capillaries in the thinnest layers of your eyelid, almost ...

Blood vessels in the brain are highly interconnected and efficient in actively regulating blood flow. Yet, the mechanisms ...

Aortic stenosis is a narrowing of the aortic valve that affects how blood flows through the heart and body. While not often linked to heart valve narrowing, high and irregular blood pressure can ...

Caltech and the Keck School of Medicine of USC have developed a new laser-based headset device that can noninvasively measure blood flow and volume. Caltech postdoctoral scholar Simon Mahler is shown ...

A leg bypass surgery may be necessary if fatty deposits have clogged a blood vessel, impeding blood flow through the leg. During this surgery, doctors will create a new pathway for blood to travel. If ...

Angina, a symptom of coronary artery disease, is a type of chest pain caused by the heart muscle not getting enough oxygen-rich blood, usually due to narrowed coronary arteries from plaque buildup.

Researchers have developed a laser-based device that can measure blood flow noninvasively and differentiate stroke risk based on current physiological conditions. When physicians want to know more ...