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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 38 min ago

High blood pressure: Could noise be a risk factor?

Fri, 11/01/2019 - 10:00
A recent study concludes that working in a noisy environment is a risk factor for high blood pressure. The effect was particularly pronounced in men.

What to know about angiograms

Tue, 10/29/2019 - 06:00
An angiogram is an X-ray of the blood vessels. Doctors use angiograms to help diagnose medical conditions related to the arteries or heart. Learn more about angiograms here.

What is a Doppler ultrasound?

Tue, 10/29/2019 - 02:00
A Doppler ultrasound can help check whether an issue such as a blockage is impeding blood flow. Doctors use the scans to diagnose a range of issues. Here, learn about the procedure, results, and more.

Women and men at risk of different obesity-related conditions

Mon, 10/28/2019 - 15:00
A new study has found that women and men with obesity face different health risks, while the condition can lead to a range of complications for all.

What to know about heart murmurs

Fri, 10/25/2019 - 18:00
In this article, we discuss different types of heart murmur, what causes them, and when they could be serious. We also discuss some treatment options.

Everything you need to know about ACE inhibitors

Fri, 10/25/2019 - 17:00
ACE inhibitors are a popular treatment for high blood pressure and other cardiovascular conditions. Read on to learn about the effectiveness of ACE inhibitors and the different types available. We also discuss their potential side effects and risks.

What is the best first line of treatment for hypertension?

Fri, 10/25/2019 - 14:00
New research finds that the drugs that physicians most commonly prescribe as the first line of treatment are not necessarily the most effective.

Calcium channel blockers: What to know

Fri, 10/25/2019 - 00:00
Calcium channel blockers are a common type of medication for high blood pressure and heart conditions. We discuss how these medications work, as well as their uses and potential risks.

Taking blood pressure pills at bedtime best for cardiovascular health

Wed, 10/23/2019 - 16:00
A new study finds that people with high blood pressure who take their pills at bedtime have better control over the condition and lower heart risk.

Heart and brain health are connected, but what influences both?

Tue, 10/22/2019 - 15:00
A new study in twins finds that modifiable factors, such as early family life, may be more important than genes in driving heart and brain health outcomes.

Work and family demands may impact women's heart health

Sat, 10/19/2019 - 10:00
A new Brazilian study has found that stress arising from balancing work and family life can detrimentally affect women’s cardiovascular health.

What is an echocardiogram?

Fri, 10/18/2019 - 18:00
An echocardiogram is an ultrasound image of the heart. It can help doctors diagnose a range of heart problems. This article discusses the uses, types, and results of echocardiograms.

Atrial fibrillation: Daily alcoholic drink riskier than binge drinking

Fri, 10/18/2019 - 16:00
New research finds that frequent low alcohol consumption, such as one daily drink, has a higher risk of atrial fibrillation than infrequent binge drinking.

How does taurine affect the body?

Fri, 10/18/2019 - 00:00
Taurine is an amino acid that occurs naturally in the body. People can also get taurine from supplements and other dietary sources. This article outlines the health benefits and potential risks of taurine.

Type 2 diabetes: Weight regain reduces cardiovascular benefits

Fri, 10/11/2019 - 14:00
New research on type 2 diabetes shows that regaining weight reverses much of the cardiovascular risk reduction that initial weight loss affords.

Having a dog may boost survival after a heart attack or stroke

Wed, 10/09/2019 - 14:00
Two new studies show that owning a dog significantly reduces people's risk of death following a heart attack or stroke, as well as death from any cause.

Existing blood thinner delays Alzheimer's disease in mice

Tue, 10/08/2019 - 14:00
New research in mice suggests that dabigatran, a blood thinning drug, may help delay the development of Alzheimer's by maintaining normal brain blood flow.

¿Por qué me duele el brazo izquierdo?

Fri, 10/04/2019 - 07:00
El dolor repentino o inexplicable del brazo izquierdo puede deberse al envejecimiento, pero también puede indicar un ataque cardíaco o angina. ¿Cómo saberlo? Infórmate aquí sobre diagnóstico, tratamiento y síntomas adicionales.

What is claudication?

Fri, 10/04/2019 - 00:00
Claudication is pain, cramping, or fatigue in the muscles that usually occurs during exercise and goes away with rest. Learn about why it happens, what it feels like, and treatments here.

Drug that targets body clock may prevent heart attack damage

Thu, 10/03/2019 - 15:00
New research in mice shows that an innovative method targeting body clock mechanisms could promote better repair of the heart muscle after a heart attack.