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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 35 min ago

Got the night munchies? Beware diabetes and heart disease

Wed, 11/08/2017 - 08:00
Emerging research suggests that eating late in the evening can increase susceptibility to heart disease and diabetes, putting 'night owls' at risk.

Aspiring astronauts: Beware of the health risks of space travel

Fri, 11/03/2017 - 15:00
Trips to distant planets may soon be reality. But space travel takes its toll on the human body. How will our intrepid explorers stay safe?

Just two sugary drinks per week may raise type 2 diabetes risk

Fri, 11/03/2017 - 07:00
We all know that sugary drinks are not great for our health, but how much is too much? A new review of existing studies investigates.

Teen moms at risk of heart disease

Wed, 11/01/2017 - 15:00
Recent research found that teenage first-time mothers have a significantly greater long-term risk of cardiovascular disease than older moms.

Need to cut down on salt? Try something spicy instead

Tue, 10/31/2017 - 15:00
Too much salt is not good for the heart, but now, researchers have come up with a smart — and tasty — way to help us cut down: spicy food.

Skin may regulate blood pressure, study finds

Thu, 10/26/2017 - 16:00
The skin may respond to low-oxygen environments in a way that increases blood pressure and heart rate, according to a study in mice.

Blood thinners slash dementia risk in A-fib patients

Wed, 10/25/2017 - 07:00
A new study suggests that anticoagulants - old and new - may have a protective effect against dementia in patients with atrial fibrillation.

What is causing the pain in my shoulder blade?

Sat, 10/21/2017 - 16:00
There are many different possible causes of shoulder blade pain. In this article, we take a look at some common ones and their treatment options.

Exercise does not prevent blocked arteries, study finds

Wed, 10/18/2017 - 15:00
A longitudinal study suggests that, contrary to expectations, spending more than 7.5 hours per week exercising does not protect against blocked arteries.

A-fib strikes men a decade earlier than women

Mon, 10/16/2017 - 14:00
New research shows that atrial fibrillation develops in men 10 years earlier on average than in women, and that excess weight is also a factor.

Could tai chi encourage more patients to take up cardiac rehab?

Wed, 10/11/2017 - 14:00
Tai chi did not raise aerobic fitness, but it increased physical activity, was liked, and was adhered to by heart patients who refused conventional rehab.

Targeting 'simple proteins' may extend metabolic healthspan

Tue, 10/10/2017 - 16:00
Scientists have found that deficient levels of fatty acid-binding proteins protect against diabetes, obesity, inflammation, and other age-related diseases.

Marital ups and downs may impact men's heart health

Tue, 10/10/2017 - 07:00
A new study investigating the links between marriage and health concludes that marital peaks and troughs can influence cardiovascular risk factors.

Nonvalvular atrial fibrillation: Get the facts

Mon, 10/09/2017 - 07:00
Learn about nonvalvular atrial fibrillation here. How does it differ from other forms of A-fib? What are the risks, symptoms, and treatment options?

Low calcium may raise cardiac arrest risk by twofold

Sun, 10/08/2017 - 09:00
Researchers have linked low blood calcium levels to a greater likelihood of sudden cardiac arrest, a leading cause of death in the United States.

High-sugar diets raise heart disease risk in healthy people

Fri, 10/06/2017 - 14:00
A study finds that a high-sugar diet changes a healthy person's fat metabolism so that it resembles that of someone with non-alcoholic fatty liver disease.

Leafy greens may contribute to a healthy heart

Fri, 10/06/2017 - 07:00
In a first-of-its-kind study, researchers examine the link between vitamin K and the structure and good functioning of the heart in teenagers.

Potassium may help to prevent heart disease

Thu, 10/05/2017 - 16:00
Researchers have found that increasing dietary levels of potassium could help to reduce vascular calcification, which is a risk factor for heart disease.

Severe heart failure may be reversible

Thu, 10/05/2017 - 14:00
In a mouse model of advanced heart failure, researchers show that silencing the Hippo signaling pathway can activate heart muscle regeneration.

Watching hockey increases cardiac stress by twofold

Thu, 10/05/2017 - 07:00
A new study finds that the cardiac stress resulting from watching a hockey game is equivalent to that of intense physical exercise.

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