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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 37 min ago

'Good' cholesterol might actually be bad

Thu, 08/24/2017 - 16:00
A large new study in the general population has found a link between excessive mortality and high levels of the so-called good cholesterol.

Could this compound boost the benefits of your workout?

Thu, 08/24/2017 - 15:00
A chemical compound called Yoda1 could help to enhance the benefits of exercise by activating an exercise sensor that regulates blood flow, a study finds.

Could this compound boost the benefits of your workout?

Thu, 08/24/2017 - 15:00
A chemical compound called Yoda1 could help to enhance the benefits of exercise by activating an exercise sensor that regulates blood flow, a study finds.

Brain patterns hold key to stress-related cardiovascular risk

Thu, 08/24/2017 - 07:00
Stress is known to affect heart health. New research inspects brain activity and spots patterns that predict individuals most at risk.

Brain patterns hold key to stress-related cardiovascular risk

Thu, 08/24/2017 - 07:00
Stress is known to affect heart health. New research inspects brain activity and spots patterns that predict individuals most at risk.

Heart failure patients, clinicians have differing perceptions of risk level

Wed, 08/23/2017 - 07:00
Physicians identified a majority of patients with advanced heart failure as at high risk for transplant, left ventricular assist device (LVAD) or death while few of those patients considered...

How do vegetarian diets affect cholesterol levels?

Tue, 08/22/2017 - 07:00
Long-term plant-based diets lower total cholesterol, suggests a new review and meta-analysis of observational studies and clinical trials.

Understanding how fish grow their hearts could help humans, professor finds

Fri, 08/18/2017 - 07:00
It's already known some fish have big hearts - at least during the winter.Now a U of G professor has identified a protein that enables fish to change the size of their hearts based on the...

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.

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