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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: 3 min 19 sec ago

PTSD 'should be viewed as a systemic disorder'

Mon, 04/03/2017 - 07:00
Researchers call for post-traumatic stress disorder to be seen as a systemic condition, after linking it to at least 10 comorbidities.

Anticoagulant apixaban superior to warfarin for reducing brain bleeds in patients with atrial fibrillation

Fri, 03/31/2017 - 13:00
In a new analysis, patients with atrial fibrillation showed a substantially reduced risk of dangerous bleeding in the brain, known as intracranial hemorrhage, when taking the newer anticoagulant...

EKG results for A-fib: What do they look like?

Thu, 03/30/2017 - 07:00
A doctor can identify some kinds of atrial fibrillation by looking at an EKG. Learn about their characteristics and how they are identified.

More evidence that statins could prevent blood clots in the veins

Wed, 03/29/2017 - 13:00
Further evidence has been found by Universities of Leicester and Bristol researchers to suggest statins could "significantly reduce" the occurrence of blood clotting in certain parts of the body.

Cardiac arrest patients do better if taken immediately to a specialist heart centre - regardless of how far away it is

Wed, 03/29/2017 - 13:00
People who suffer cardiac arrest outside of hospital have a better chance of survival if they are taken immediately to a specialist heart centre rather than to the nearest general hospital...

Longer telomeres protect against diseases of aging: A tale of mice and men

Wed, 03/29/2017 - 07:00
Scientists at the Gladstone Institutes discovered a key mechanism that protects mice from developing a human disease of aging, and begins to explain the wide spectrum of disease severity often seen...

Atrial fibrillation: List of medications for treatment

Tue, 03/28/2017 - 10:00
Atrial fibrillation (A-fib) causes a disruption in the regular rhythm of the heart. Learn about the benefits, risks, and side effects of medical treatment.

How do alcohol and caffeine affect A-fib?

Sat, 03/25/2017 - 10:00
Learn how caffeine and alcohol may affect the heart and if they are triggers for A-fib. Is it safe to consume alcohol and caffeine with A-fib?

Diabetes: Heart attack risk due to loss of small blood vessels around the heart

Fri, 03/24/2017 - 14:00
Study suggests that the higher risk of heart attack in diabetes is due to the loss of small blood vessels around the heart, and it proposes a gene therapy.

Catheter ablation for A-fib: What to expect

Fri, 03/24/2017 - 13:00
A catheter ablation is an invasive procedure used to correct an irregular heartbeat. In this article, find out the risks, benefits, and how to prepare.

Atrial fibrillation: Natural treatments, remedies, and tips

Fri, 03/24/2017 - 11:00
Learn about A-fib and the natural treatments available. What herbs and supplements may be used to treat A-fib and what substances should be avoided?

Moderate drinking linked to lower risk of some - but not all - heart conditions

Fri, 03/24/2017 - 07:00
Moderate drinking is associated with a lower risk of several, but not all, cardiovascular diseases, finds a large study of UK adults published by The BMJ.

Does boosting "good" cholesterol really improve your health?

Fri, 03/24/2017 - 07:00
A new review addresses the mysteries behind "good" HDL cholesterol and why boosting its levels does not necessarily provide protection from cardiovascular risk for patients.

Novel link between unhealthy hearts and dementia

Thu, 03/23/2017 - 07:00
Researchers from National University Health System (NUHS) have discovered a link between cardiac diseases and brain dysfunction.

'Spray painting' shows promise as minimally invasive way to patch up the heart

Wed, 03/22/2017 - 14:00
Spray painting biomaterials shows promise as a minimally invasive way to create a regenerative patch on the heart to repair tissue after heart attack.

A simple fix to avoid some unnecessary coronary stents

Wed, 03/22/2017 - 13:00
Physician researchers at Thomas Jefferson University suspect that some cases of coronary artery spasm go unrecognized and are incorrectly treated with stents.

A-fib with RVR: Information, treatment, and management

Wed, 03/22/2017 - 07:00
In this article, learn about the most common rhythm disorder of the heart, including how to reduce the risk of stroke and heart failure.

Coffee shops, ATMs may be ideal locations for lifesaving AEDs

Wed, 03/22/2017 - 07:00
Community coffee shops and automated teller machines, or ATMs, might be ideal locations for public access to automated external defibrillators (AEDs), according to new research in the American...

Atrial fibrillation triggers: What can lead to an A-fib attack?

Tue, 03/21/2017 - 13:00
In this article, learn about atrial fibrillation triggers, tips that may help to avoid triggers, lifestyle tips, and what may cause atrial fibrillation.

A-fib and exercise: Health benefits and risks

Tue, 03/21/2017 - 07:00
How can someone with atrial fibrillation keep fit safely? In this article, we look at the best methods to reduce symptoms and improve heart health.