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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 15 min ago

How to Lower High Triglycerides

Mon, 01/23/2017 - 08:00
High triglyceride levels increase the risk of certain diseases. Learn what can be done to lower triglyceride levels with tips on diet and exercise.

Experts urge for wider prescription of statins in treatment and prevention: Link to diabetes questionable and inconsequential

Mon, 01/23/2017 - 08:00
World-renowned researchers from the Charles E. Schmidt College of Medicine at Florida Atlantic University as well as Harvard Medical School address the possible but unproven link between statins...

Death risk may be higher for participants of U.S. food assistance program

Sat, 01/21/2017 - 08:00
A new study finds that subjects who are a part of the federal food assistance program SNAP may be at a much higher risk of death than nonparticipants.

'Soft robot' designed to pump failing hearts

Sat, 01/21/2017 - 08:00
Heart failure affects millions of Americans. A new wave of 'soft robots' capable of mimicking heart muscles may save lives on the transplant waiting list.

Could statins help to reduce blood clots in veins?

Fri, 01/20/2017 - 15:00
A research review suggests that statins - commonly used for reducing cholesterol to prevent cardiovascular disease - may also prevent blood clots in veins.

Protein released by injured neurons predicts brain recovery following out-of-hospital heart attack

Fri, 01/20/2017 - 14:00
The biomarker neuron-specific enolase is a strong predictor of brain recovery in heart attack patients who are unconscious for three or more days, according to a study published in the journal PLOS...

Acute Coronary Syndrome: Causes, Symptoms, and Treatment

Fri, 01/20/2017 - 08:00
Learn about different types of acute coronary syndrome and associated risk factors. How is it diagnosed and are there lifestyle changes that can help?

More than half of atrial fibrillation patients become asymptomatic after catheter ablation

Thu, 01/19/2017 - 14:00
More than half of patients with atrial fibrillation (AF) become asymptomatic after catheter ablation, reports the largest study of the procedure published in European Heart Journal.

Epigenetic factors linked to obesity-related disease

Thu, 01/19/2017 - 08:00
Obesity has been linked to "letter" changes at many different sites in the genome, yet these differences do not fully explain the variation in people's body mass index (BMI) or why some overweight...

Blacks, Hispanics less likely to achieve blood pressure control

Wed, 01/18/2017 - 08:00
Blacks and Hispanics with high blood pressure are less likely than whites to get their condition under control, according to new research in Circulation: Cardiovascular Quality and Outcomes, an...

Biomarker could identify patients with potential for recovery from advanced heart failure

Wed, 01/18/2017 - 08:00
Investigators at the University of Utah have identified distinct differences in the hearts of advanced heart failure patients who have defied the odds and showed signs of recovery from the disease.

Why might coffee drinkers live longer? Study sheds light

Tue, 01/17/2017 - 17:00
A new study finds that caffeine counters an inflammatory process linked to poor heart health in later life, explaining why coffee drinkers may live longer.

Older, fitter adults experience greater brain activity while learning

Tue, 01/17/2017 - 08:00
Older adults who experience good cardiac fitness may be also keeping their brains in good shape as well.

Study finds high survival rate for elderly patients with implantable defibrillator

Tue, 01/17/2017 - 08:00
Of patients over age 65 who received an implantable cardioverter-defibrillator (ICD) after surviving sudden cardiac arrest or a near-fatal arrhythmia, almost 80 percent survived two years - a...

Ministrokes may cause dementia, study suggests

Mon, 01/16/2017 - 17:00
New study suggests the impact of ministrokes is wider and longer-lasting than previously understood, potentially causing dementia and cognitive decline.

Atrial fibrillation more prevalent in dialysis patients than expected

Mon, 01/16/2017 - 14:00
Atrial fibrillation, which is the most common cardiac arrhythmia, is an important risk factor for strokes.

Women with high-risk congenital heart disease can have successful pregnancies

Fri, 01/13/2017 - 08:00
American Heart Association Scientific Statement: Women with high-risk congenital heart disease can have successful pregnancies but should seek counseling before conception to understand how their...

Researchers use stem cells to regenerate the external layer of a human heart

Fri, 01/13/2017 - 08:00
A process using human stem cells can generate the cells that cover the external surface of a human heart - epicardium cells - according to a multidisciplinary team of researchers.

Quick and easy blood test for gut bacteria can predict accurately risk of death and heart problems in heart attack patients

Thu, 01/12/2017 - 14:00
The bacteria that inhabit our gut digest food and produce metabolites that can have a marked effect on the heart and blood vessels.

Stress, heart health, and the amygdala: Links explained

Thu, 01/12/2017 - 08:00
Although it is common knowledge that stress impacts cardiovascular health, the mechanisms at work have remained a mystery. New research gives fresh clues.