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The cardiovascular system is comprised of the heart and the network of arteries, veins, and capillaries that carries blood throughout the body. The average adult male has between 5-6 liters of blood while the average adult female has 4-5 liters. Blood transports oxygen and essential nutrients to all of the living cells in the body, and also carries waste products from the tissues to the systems of the body through which they are removed.
Updated: 2 hours 7 min ago

Clinic readings may underestimate blood pressure during daily activities

Tue, 12/06/2016 - 14:00
Around the clock monitoring during daily activity revealed masked, or undetected, high blood pressure among otherwise healthy adults who had normal readings in the clinic, according to new research...

Field position may impact blood pressure in football players

Tue, 12/06/2016 - 14:00
Football at the college-level is associated with increased blood pressure and changes in size, shape, structure and function of the heart, especially among linemen, according to a new study...

Moderate drinking may cause irregular heartbeat

Tue, 12/06/2016 - 10:00
Although some research suggests that light to moderate drinking is good for the heart, a new study shows it may lead to a form of arrhythmia.

Adrenaline rush: Delaying epinephrine shots after cardiac arrest cuts survival rates

Tue, 12/06/2016 - 08:00
Hospitals in which the administration of epinephrine to patients whose hearts have stopped is delayed beyond five minutes have significantly lower survival rates of those patients, a new study led...

Is smoking ever safe? Study investigates

Mon, 12/05/2016 - 17:00
The harmful effects of smoking are well known, but a new study investigates the health risks associated with a lower level of tobacco use.

FDA approves Jardiance to reduce cardiovascular death in adults with type 2 diabetes

Mon, 12/05/2016 - 14:00
The U.S. Food and Drug Administration has approved a new indication for Jardiance (empagliflozin) to reduce the risk of cardiovascular death in adult patients with type 2 diabetes mellitus and...

Dabigatran superior to warfarin when anticoagulation is resumed after bleeding

Mon, 12/05/2016 - 08:00
In the first analysis of how to treat patients on anticoagulants who suffer a major bleeding event, a clinical practice that routinely gives doctors pause, while also evaluating a new drug...

Crab shell patch could help keep hearts beating after heart attack

Fri, 12/02/2016 - 14:00
Researchers have created a material, that includes a chemical found in a crab's shell, that can bridge the gap in the heart's electrical signals caused by a heart attack.

Thousands of heart patients missing out on cardiac rehabilitation

Fri, 12/02/2016 - 08:00
Thousands of heart patients are missing out on cardiac rehabilitation following a heart attack, increasing their risk of suffering a fatal event, according to new figures released by the British...

Correlates of overweight and obesity among adolescents with bipolar disorder in the national comorbidity survey

Fri, 12/02/2016 - 08:00
Bipolar disorder is one of the most disabling medical conditions among adolescents worldwide.

World first MRI study sheds light on heart damage during kidney dialysis

Thu, 12/01/2016 - 14:00
Experts in magnetic resonance imaging (MRI) and kidney disease have carried out the first ever scans to study the heart function of kidney patients while they are having dialysis treatment.

Leading heart professor recognised as top global researcher

Thu, 12/01/2016 - 14:00
The "valuable and significant" work of a University of Leicester heart professor has won him recognition as one of the world's most influential scientists.

Genetic link to fatal health condition could aid future treatment

Wed, 11/30/2016 - 14:00
Thousands of lives could be saved every year after it was discovered a fatal cardiovascular condition could be linked to four genes, research has found.

Exercise extends life, but which exercise is best?

Wed, 11/30/2016 - 08:00
It is common knowledge that sports can extend life and improve heart health, but the question of which exercise is best has rarely been broached.

Heart attack risk over eight times higher for younger smokers

Wed, 11/30/2016 - 08:00
Smokers who are under 50 years of age are at a much higher risk of developing a specific type of heart attack, according to a new study.

Preventing heart failure risk factors in midlife substantially lowers risk

Tue, 11/29/2016 - 08:00
Preventing the development of hypertension, obesity and diabetes by the age of 45 to 55 years may lead up to an 86 percent lower risk for heart failure through the remainder of life, according to...

Why is heart growth beneficial in some circumstances but detrimental in others?

Tue, 11/29/2016 - 08:00
Why is heart growth beneficial in some circumstances but detrimental in others?

Heart disease: Consuming too much saturated fat may raise risk

Thu, 11/24/2016 - 15:00
A study finds high intakes of common saturated fats - such as those found in red meat, dairy fat, butter, and palm oil - may raise risk of heart disease.

Lowest stroke rates in older baby boomers; younger people rising

Thu, 11/24/2016 - 14:00
Stroke rates continue to decline in people 55 and older, while more than doubling in those between 35 and 39, according to new research in Journal of the American Heart Association, the Open Access...

Study finds key protein that binds to LDL cholesterol

Wed, 11/23/2016 - 08:00
A Yale-led research team identified a protein that plays an important role in the buildup of LDL cholesterol in blood vessels.