Learn How the Heart Works. Your heart is an amazing organ. It continuously pumps oxygen and nutrient-rich blood throughout your body to sustain life. This fist-sized powerhouse beats (expands and ...

Researchers have found that red blood cells have an innate ability to trigger a pathway that protects the heart from injury during periods of low oxygen, such as during a heart attack. The ...

Doctors call this sort of fainting vasovagal syncope, and it occurs when there is a sudden drop in heart rate and blood pressure. That reduces blood flow to the brain, which shuts down the ...

Blood clotting can lead to life-threatening heart attacks and strokes, and current treatments can lead to excessive bleeding and other worrisome side effects. | Researchers at Harvard's Brigham ...

The pathway of blood through the heart. Left-hand side. Oxygenated blood is carried to the heart from the lungs in the pulmonary vein. It goes into the left atrium, ...

Scientists have decoded the entire pathway that regulates leakiness of blood vessels — a condition that promotes a wide number of disorders, such as heart disease, cancer growth and spread ...

Key pathway involved in blood vessel occlusion discovered. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2016 / 01 / 160114162553.htm ...

Oxygen-rich blood generally flows from the heart to the brain, but a new technology aimed at preventing strokes temporarily reverses that path.Surgeons at Sharp Grossmont Hospital in La Mesa are th… ...

When blood stops flowing to the heart muscle, its tissues can swell up. This extra fluid between cells pushes the heart cells apart, expanding the width of the perinexus, and preventing ephaptic ...

Under stress, the human heart struggles to pump blood efficiently through the body. Over time, as the heart overexerts itself trying to make up for this lost efficiency, harmful changes take place ...