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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: 51 min 21 sec ago

Paroxysmal atrial fibrillation: Causes, symptoms, and treatment

Fri, 03/10/2017 - 08:00
In this article, learn about what paroxysmal atrial fibrillation is and what its complications could be. Does paroxysmal AFib affect day-to-day life?

Wrist-worn heart rate monitors less accurate than standard chest strap

Fri, 03/10/2017 - 08:00
Researchers at Cleveland Clinic put five popular wrist-worn fitness trackers to the test to find out how accurately they gauge heart rate across several types of exercise and intensity levels.

Younger heart attack patients more likely to have low 'good' cholesterol vs. elevated 'bad' cholesterol

Fri, 03/10/2017 - 08:00
Men under 45 years old and women under 50 years old who suffer a heart attack are far more likely to have abnormally low good cholesterol than elevated bad cholesterol, according to research...

High folic acid level in pregnancy may decrease high blood pressure in children

Fri, 03/10/2017 - 08:00
A new article published in the American Journal of Hypertension finds that babies born to mothers with cardiometabolic risk factors were less likely to develop high blood pressure if their mothers...

After heart attack, people with depression twice as likely to die

Thu, 03/09/2017 - 08:00
A new long-term study finds that people who had a heart attack or angina may be twice as likely to die if they also have depression.

Blood pressure could be more effectively controlled as new treatment target is discovered

Wed, 03/08/2017 - 08:00
New more effective treatments for high blood pressure could be possible thanks to the discovery that the nitric oxide that regulates blood pressure is formed in nerves rather than in the walls of...

Screening for heart disease may lead to prevention, better treatments

Tue, 03/07/2017 - 14:00
Through computed tomography (CT) images of the heart and other types of imaging, build-up of dangerous coronary plaques - which restrict the flow of blood to the heart - can be detected, even...

Hydraulic forces help to fill the heart

Fri, 03/03/2017 - 14:00
Researchers at Karolinska Institutet and KTH Royal Institute of Technology in Sweden have contributed to a recent discovery that the heart is filled with the aid of hydraulic forces, the same as...

New treatment for fatty liver disease and type 2 diabetes burns up fat in liver

Fri, 03/03/2017 - 14:00
Researchers in Sweden are planning the clinical trial of a new treatment for nonalcoholic fatty liver disease and type 2 diabetes which harnesses liver cells' own ability to burn accumulated fats.

Desk jobs are bad for your heart and your waist

Fri, 03/03/2017 - 08:00
A new study shows further evidence for the view that spending too much time sitting down is bad for our health and our waistline.

Benefits of physical activity may outweigh impact of obesity on cardiovascular disease

Wed, 03/01/2017 - 14:00
The benefits of physical activity may outweigh the impact of overweight and obesity on cardiovascular disease in middle-aged and elderly people, according to research published today in the...

Researchers aim to debunk myths on antioxidant pills, juicing, other dietary fads

Wed, 03/01/2017 - 08:00
Researchers analyzed nutrition studies in a new review published in the Journal of the American College of Cardiology, which intends to cut through the confusion about the best dietary patterns to...

Light beam replaces blood test during heart surgery

Wed, 03/01/2017 - 08:00
A University of Central Florida professor has invented a way to use light to continuously monitor a surgical patient's blood, for the first time providing a real-time status during life-and-death...

Early warning signs might have been missed in one in six heart attack deaths in England

Wed, 03/01/2017 - 08:00
Heart attack symptoms might have been missed in many patients admitted to hospital, according to a study on all heart attack hospital admissions and deaths in England.

Pacemaker function may be impacted by electric appliances; tools

Tue, 02/28/2017 - 14:00
Electric and magnetic fields (EMF) generated from everyday household appliances, electrical tools and more, used in very close proximity to the body, can interfere with the ability of pacemakers to...

Risk factors for heart failure subtypes studied in new detail

Tue, 02/28/2017 - 08:00
BMI and physical activity are known risk factors for heart failure. However, their exact relationships with subtypes of the disease are not known.

Doctors should discuss herbal medication use with heart disease patients

Tue, 02/28/2017 - 08:00
Physicians should be well-versed in the herbal medications heart disease patients may take to be able to effectively discuss their clinical implications, potential benefits and side effects ...

Following dietary recommendations leads to modest heart health improvements

Tue, 02/28/2017 - 08:00
Following current dietary recommendations may lead to small improvements in overall heart health in overweight individuals, according to a study published in the Journal of the American College of...

People with mental health disorders at risk of stroke, study finds

Fri, 02/24/2017 - 08:00
A new study investigates the link between patients with metal health issues and the risk of having a stroke within several time periods.

Unlocking the heart-protective benefits of soy

Fri, 02/24/2017 - 08:00
A product of digesting a micronutrient found in soy may hold the key to why some people seem to derive a heart-protective benefit from eating soy foods, while others do not, a University of...