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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: 59 min ago

7 'simple' steps for heart health may also stave off dementia

Thu, 08/08/2019 - 10:00
New research examines the link between heart health at 50 years of age, and the risk of developing dementia 25 years later, on average.

Do rising obesity levels explain cardiovascular mortality trends?

Tue, 08/06/2019 - 14:00
Many countries worldwide are losing the progress they had made in lowering mortality rates related to cardiovascular events. Why is this happening?

Why older adults need regular metabolic risk screening

Thu, 08/01/2019 - 16:00
New guidelines recommend regular screening of older adults to assess metabolic risk of type 2 diabetes and atherosclerotic cardiovascular disease.

Stopping statins may increase cardiovascular risk

Wed, 07/31/2019 - 10:00
New research warns that stopping statin use later in life could significantly increase a person's risk of heart problems and vascular events.

Both blood pressure numbers may predict heart disease

Sat, 07/27/2019 - 10:00
A new large-scale study suggests that both components of a blood pressure reading may predict the risk of heart attack and stroke.

Vitamins and supplements for increased blood flow

Tue, 07/23/2019 - 17:00
Although there is little robust research to support the claims of their effectiveness, some vitamins may help increase blood flow. Learn about them here.

Heart disease: Millions taking daily aspirin without doctor's advice

Tue, 07/23/2019 - 16:00
A new study finds that many U.S. adults are using daily low dose aspirin to prevent heart disease, despite new guidelines advising against this.

Paleo diet may be bad for heart health

Tue, 07/23/2019 - 15:00
Researchers have uncovered fresh evidence that following a Paleo diet may place heart health at risk, and they identify a possible source of the threat.

Misdiagnosis of the 'big three' results in 'serious harm'

Mon, 07/22/2019 - 10:00
New research finds that diagnostic errors involving cancer, infections, and vascular events often lead to death or permanent disability.

How an omega-6 fatty acid may keep heart disease at bay

Sat, 07/20/2019 - 07:00
New research in mouse cells sheds light on some mechanisms that help explain how dihomo-gamma-linolenic acid, an omega-6, prevents atherosclerosis.

What causes a pulse in the stomach?

Thu, 07/18/2019 - 21:00
Feeling a pulse in the stomach, or abdomen, is not a cause for concern in some people. However, in others, it may indicate an aortic aneurysm. Learn more about the causes, risk factors, and symptoms here.

Higher iron levels may protect arteries but raise clot risk

Thu, 07/18/2019 - 16:00
A new study links naturally higher iron levels to a reduced risk of clogged arteries but a raised risk of clots related to the slowing of blood flow.

Air pollution may raise atherosclerosis, heart disease death risk

Tue, 07/16/2019 - 07:00
New findings suggest that 'atherosclerosis is a pathological pathway through which air pollution' raises the risk of death from heart disease.

Why even slim people may benefit from calorie restriction

Mon, 07/15/2019 - 10:00
New research reveals the cardiometabolic benefits that a small reduction in calorie intake can have on people who are not overweight or obese.

High blood pressure: Could gut bacteria play a role?

Sun, 07/14/2019 - 07:00
Over recent years, researchers have investigated the potential role of gut bacteria in hypertension. Although evidence is mounting, questions remain.

Top 13 high potassium foods

Fri, 07/12/2019 - 06:00
Potassium is a nutrient that is key to good heart health. In this article, learn about the best high potassium foods that people can eat.

Are there any health benefits to a cold shower?

Fri, 07/12/2019 - 04:00
The potential health benefits of taking a cold shower include strengthening the immune system, feeling invigorated, and boosting mood. Learn more about the benefits of taking a cold shower here.

How many calories do eggs contain?

Wed, 07/10/2019 - 18:00
Eggs are rich in protein, calcium, and potassium, among other vital nutrients. In this article, learn how many calories an egg contains, as well as the risks and benefits of eating eggs.

These diets and supplements may not really protect the heart

Tue, 07/09/2019 - 07:00
Do common dietary interventions and nutritional supplements really help protect against cardiovascular events? A new meta-analysis answers in the negative.

Could targeting this heart hormone help control blood pressure?

Mon, 07/08/2019 - 16:00
The heart releases a hormone that has a key role in blood pressure. Now, a study of rats shows that its function depends on a sugar molecule attachment.

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