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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: 1 hour 41 min ago

New gene-editing technology partially restores vision in blind animals

Fri, 11/18/2016 - 08:00
Salk Institute researchers have discovered a holy grail of gene editing - the ability to, for the first time, insert DNA at a target location into the non-dividing cells that make up the majority...

Knowing your fitness number predicts your risk for future ill health

Fri, 11/18/2016 - 08:00
It is well known that individuals who are unfit are at substantially greater risk for lifestyle-related diseases and premature death.

Simple genetic test shows promise for better outcomes in heart stent patients

Thu, 11/17/2016 - 14:00
A quick, precise genetic test can significantly reduce the risk of cardiovascular events by helping to identify more effective medication for some heart patients, a group led by University of...

High blood pressure: Global total almost doubles in 4 decades

Wed, 11/16/2016 - 15:00
The number of people with high blood pressure nearly doubled between 1975-2015, with developing countries seeing the largest rise, a new report reveals.

Prescribing drugs for cardiovascular disease prevention in the UK - can it be improved to prevent strokes?

Wed, 11/16/2016 - 13:00
Drugs such as statins that have the potential to prevent strokes and other types of cardiovascular disease have not been prescribed to a large proportion of people at risk in the UK, according to a...

Common heartburn drugs may raise stroke risk

Wed, 11/16/2016 - 08:00
Drugs commonly used to treat heartburn - proton pump inhibitors - may increase the risk of ischemic stroke by more than a fifth, a new study finds.

Dementia risk increased with use of blood-thinning drugs

Wed, 11/16/2016 - 08:00
New research finds patients who use anticoagulants - especially those with irregular heartbeat - may be at greater risk of developing dementia.

Yo-yo dieting may increase risk of heart disease death

Tue, 11/15/2016 - 17:00
New research suggests that repeatedly losing weight and regaining it can be dangerous for your heart, even if you are not overweight.

Poor sleep may increase risk for irregular heart rhythms

Tue, 11/15/2016 - 08:00
Poor sleep - even if you don't have sleep apnea - may be linked to higher risks of developing an irregular heartbeat.

Offspring may have higher risk for developing hypertension if their parents had hypertension before age 55

Mon, 11/14/2016 - 21:00
If your parents were diagnosed with high blood pressure before age 55, you may be at higher risk for developing high blood pressure than if they developed hypertension at a later age, according to...

Bariatric surgery may reduce heart failure risk

Mon, 11/14/2016 - 17:00
Bariatric surgery and other treatments that cause substantial weight loss can significantly reduce the risk of heart failure in obese patients, according to preliminary research presented at the...

New statin guidlines issued for primary CVD prevention

Mon, 11/14/2016 - 17:00
The United States Preventive Services Task Force have issued new recommendations for the use of statins in primary prevention of cardiovascular disease.

High-protein diet may raise heart failure risk for older women

Mon, 11/14/2016 - 16:00
Women aged 50-79 who consume high amounts of protein - particularly from meat - may be at greater risk of heart failure, new research finds.

Use of statins before cardiac arrest may aid survival afterwards

Mon, 11/14/2016 - 13:00
Patients who have been taking statins are likely to survive longer after a cardiac arrest than those who are not taking them, according to research from Taiwan researchers presented during the...

Inherited taste perceptions may explain why some people eat too much salt

Mon, 11/14/2016 - 13:00
People with enhanced bitter taste perception are almost twice as likely to consume too much sodium as people with less acute tasting ability.

Diets rich in omega-3 fatty acids may help lower blood pressure in young, healthy adults

Mon, 11/14/2016 - 13:00
Healthy young people may be able to help prevent the onset of high blood pressure by eating diets rich in omega-3 fatty acids, according to a preliminary study presented at the American Heart...

Marijuana use may temporarily weaken heart muscle

Mon, 11/14/2016 - 08:00
A new study links the use of marijuana to stress cardiomyopathy, a rare heart malfunction that has the same symptoms as a heart attack.

Major artery more rigid in African-Americans, which may explain high rates of hypertension and heart disease

Mon, 11/14/2016 - 08:00
African-Americans have more rigidity of the aorta, the major artery supplying oxygen-rich blood to the body, than Caucasians and Hispanics, according to a study by UT Southwestern Medical Center...

Moderate drinking may benefit 'good' cholesterol levels

Mon, 11/14/2016 - 08:00
Researchers find moderate alcohol intake - especially intake of beer and hard liquor - may slow the decline of 'good' low-density lipoprotein cholesterol.

Cardiovascular health linked to cellular aging

Sun, 11/13/2016 - 21:00
The age of a person's immune cells may predict risk of cardiovascular disease, according to a preliminary study presented at the American Heart Association's Scientific Sessions 2016.

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