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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 34 min ago

Can mammograms show who is at risk of heart failure?

Thu, 12/05/2019 - 08:00
Recent research suggests that mammograms may help identify women at risk of heart failure by revealing the presence of calcium buildup in breast arteries.

Chest pain in women: What causes it, and how do doctors diagnose it?

Wed, 12/04/2019 - 18:00
A heart attack is a common cause of chest pain, but women may have different symptoms than men. Learn about the causes, diagnosis, and treatment of chest pain in women here.

Brushing your teeth may keep your heart healthy

Tue, 12/03/2019 - 16:00
New research that followed a large group of people over an extended period suggests that regular toothbrushing staves off arrhythmia and heart failure.

Understanding blood pressure readings

Tue, 12/03/2019 - 01:00
Understanding blood pressure readings can be confusing if a person does not know what the numbers mean. This article explains the numbers in more detail.

What to know about blood thinners for heart disease

Fri, 11/29/2019 - 05:00
Blood thinners help reduce the risk of blood clots and heart disease. Learn more about the different types and their effects in this article.

What to know about angioplasty

Thu, 11/28/2019 - 21:00
Angioplasty is a medical procedure that opens a blocked or narrowed artery close to the heart. Learn about the procedure, the types, recovery, and risks here.

What does high blood pressure in the morning mean?

Thu, 11/28/2019 - 19:00
Some people may have abnormally high blood pressure in the morning. Here, learn about its causes and treatment, as well as how to measure blood pressure at home.

Peas and beans: Can they improve heart health?

Tue, 11/26/2019 - 16:00
A new analysis concludes that eating more legumes may reduce heart disease risk. However, according to the authors, the evidence is not of high quality.

Sleep loss may contribute to heart disease in those with low incomes

Tue, 11/26/2019 - 08:00
Recent evidence suggests that insufficient sleep may mediate the link between a low socioeconomic status and a higher risk of coronary heart disease.

Everything you need to know about choline

Tue, 11/26/2019 - 01:00
Choline is an essential nutrient that humans need for neurodevelopment and many other bodily functions. Learn more about choline here.

Microvascular ischemic disease: What to know

Mon, 11/25/2019 - 19:00
Microvascular ischemic disease refers to conditions that affect small blood vessels in the brain. Learn more about the causes and symptoms in this article.

Sinus tachycardia: Everything you need to know

Fri, 11/22/2019 - 19:00
Sinus tachycardia is when the sinus node in the heart sends electrical impulses faster than the normal rate, resulting in an increased heart rate. Learn more in this article.

Heart attack protein may raise early death risk

Fri, 11/22/2019 - 08:00
New research finds a link between troponin, a heart attack-related protein, and a high risk of early death among people of all ages.

Exercise after the age of 60 may prevent heart disease, stroke

Sun, 11/17/2019 - 11:00
A new study from South Korea finds that increased activity can reduce the risks of heart attack and stroke among people over the age of 60.

The link between insomnia and cardiovascular disease

Sat, 11/16/2019 - 11:00
Insomnia symptoms make a person more likely to develop stroke, heart attack, and similar diseases, finds an extensive Chinese study.

Atrial fibrillation: Height could predict risk

Fri, 11/15/2019 - 16:00
New research confirms that the taller a person is, the higher their risk of atrial fibrillation, a common condition that affects the heart.

What are the health benefits of yerba maté tea?

Thu, 11/14/2019 - 20:00
Yerba maté is made from the leaves of Ilex paraguariensis, a type of South American holy. It has a number of potential health benefits. Read this article to learn more about these benefits, some potential risks, and how to prepare it.

Listening to music while driving may help calm the heart

Thu, 11/14/2019 - 15:00
Recent experiments involving driving in stressful traffic conditions suggest that listening to music at this time may help protect heart health.

Specialists call for 'aggressive' measures against e-cigarettes

Thu, 11/14/2019 - 08:00
A new study in humans and mice adds to evidence that e-cigarettes damage cardiovascular and lung health and calls for tighter regulation of these devices.

What to know about the BNP test

Thu, 11/14/2019 - 01:00
A BNP test is a type of blood test that doctors sometimes use to help diagnose heart failure. Read on to find out more about the test procedure, and what the results indicate.