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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 40 min ago

Right ventricular hypertrophy: Causes and complications

Wed, 08/16/2017 - 07:00
What is right ventricular hypertrophy and what causes it? In this article, learn about the signs, symptoms, diagnosis, and treatment.

Medical experts outline the cardiometabolic health benefits of a plant-based diet

Wed, 08/16/2017 - 07:00
Plant-based eating patterns continue to soar in popularity and a group of nutrition researchers outline the science behind this sustainable trend in a review paper, entitled "Cardiometabolic benefits...

Research review recommends eliminating widely ordered blood test for diagnosing heart attacks

Wed, 08/16/2017 - 07:00
Researchers at the Johns Hopkins University School of Medicine and the Mayo Clinic have compiled peer-reviewed evidence and crafted a guideline designed to help physicians and medical centers stop...

Air pollution linked to cardiovascular disease; air purifiers may lessen impact

Tue, 08/15/2017 - 13:00
Exposure to high levels of air pollution increased stress hormone levels and negative metabolic changes in otherwise healthy, young adults in a recent study conducted in China.

'Delicate balance' between alcohol's protective and harmful effects

Tue, 08/15/2017 - 07:00
Heavy drinking can increase the risk of all-cause death, but moderate alcohol consumption could have 'protective health effects,' study suggests.

Specialized stem cells may rejuvenate aged hearts

Mon, 08/14/2017 - 14:00
Injecting cardiosphere-derived cells from newborn rats into aged rats' hearts rejuvenated heart function, exercise capacity, and other markers of aging.

E-cigarettes: How safe are they for cardiovascular health?

Mon, 08/14/2017 - 07:00
A new study investigates the effect of chronic and acute exposure to e-cigarette vapor on the cardiovascular health of female mice.

Dextrocardia: Causes, symptoms, and treatment

Fri, 08/11/2017 - 13:00
Dextrocardia is a rare condition where the heart points to the left side of the body instead of the right. Learn about this unique condition.

Obese heart surgery patients require significantly more ICU resources

Fri, 08/11/2017 - 07:00
Growing obesity problem prompts closer look at ways to maximize critical care resource management.

Biological bypass shows promise in coronary artery disease

Fri, 08/11/2017 - 07:00
A new gene therapy that targets the heart and requires only one treatment session has been found safe for patients with coronary artery disease, according to a successful trial carried out in Finland.

Scientists reveal source of human heartbeat in 3D

Thu, 08/10/2017 - 07:00
A pioneering new study is set to help surgeons repair hearts without damaging precious tissue.

Marijuana 'may be worse than cigarettes for cardiovascular health'

Wed, 08/09/2017 - 07:00
Researchers suggest that the harmful effects of marijuana use on the cardiovascular system may be greater than the effects caused by cigarette smoking.

Protein 'tricks heart' into healthy growth without exercise

Tue, 08/08/2017 - 14:00
A new study shows that the protein cardiotrophin 1 can induce the heart to grow in a healthy way - as in response to exercise - and pump more blood.

Heart-healthy middle age tied to lower risk of dementia

Mon, 08/07/2017 - 15:00
Study finds that modifiable vascular risk factors such as diabetes, high blood pressure, and smoking in mid-life are tied to higher risk of dementia later.

Characteristics of metabolically unhealthy lean people

Fri, 08/04/2017 - 07:00
Compared to people who are of normal weight and metabolically healthy, subjects who are of normal weight but metabolically unhealthy (~20% of normal weight adults) have a more than three-fold higher...

Common allergy drugs may prevent blood clots

Fri, 08/04/2017 - 07:00
New research in mice suggests that common allergy drugs may offer a bleeding risk-free alternative to existing anti-clotting medication.

Breakthrough: Gene editing repairs mutation in human embryos

Thu, 08/03/2017 - 15:00
For the first time, scientists have used CRISPR-Cas9 gene editing on human embryos to repair a mutation that causes a deadly heart condition.

CVD risk may rise sixfold in the year after pneumonia, sepsis

Wed, 08/02/2017 - 15:00
Hospital admission for pneumonia or sepsis could increase the risk of cardiovascular disease by more than sixfold in the first year, study finds.

Study identifies enzyme that protects cells from toxic fat

Wed, 08/02/2017 - 07:00
A new study from Harvard T.H. Chan School of Public Health and Howard Hughes Medical Institute sheds light on how a key fat-producing enzyme helps protect cells from a toxic form of fat.

Health benefits of the Mediterranean diet are confirmed, but just for the upper class

Wed, 08/02/2017 - 07:00
The Mediterranean diet reduces the risk of cardiovascular disease but only if you are rich or highly educated. This is the surprising finding by researchers from the Italian I.R.C.C.S.

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