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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: 3 min 31 sec ago

Early warning signs might have been missed in one in six heart attack deaths in England

Wed, 03/01/2017 - 08:00
Heart attack symptoms might have been missed in many patients admitted to hospital, according to a study on all heart attack hospital admissions and deaths in England.

Pacemaker function may be impacted by electric appliances; tools

Tue, 02/28/2017 - 14:00
Electric and magnetic fields (EMF) generated from everyday household appliances, electrical tools and more, used in very close proximity to the body, can interfere with the ability of pacemakers to...

Risk factors for heart failure subtypes studied in new detail

Tue, 02/28/2017 - 08:00
BMI and physical activity are known risk factors for heart failure. However, their exact relationships with subtypes of the disease are not known.

Doctors should discuss herbal medication use with heart disease patients

Tue, 02/28/2017 - 08:00
Physicians should be well-versed in the herbal medications heart disease patients may take to be able to effectively discuss their clinical implications, potential benefits and side effects ...

Following dietary recommendations leads to modest heart health improvements

Tue, 02/28/2017 - 08:00
Following current dietary recommendations may lead to small improvements in overall heart health in overweight individuals, according to a study published in the Journal of the American College of...

People with mental health disorders at risk of stroke, study finds

Fri, 02/24/2017 - 08:00
A new study investigates the link between patients with metal health issues and the risk of having a stroke within several time periods.

Unlocking the heart-protective benefits of soy

Fri, 02/24/2017 - 08:00
A product of digesting a micronutrient found in soy may hold the key to why some people seem to derive a heart-protective benefit from eating soy foods, while others do not, a University of...

Discovery could help doctors to spot cardiovascular disease at an earlier stage

Thu, 02/23/2017 - 08:00
Screening methods for cardiovascular diseases such as heart attacks and strokes could be improved by measuring different biological signposts to those currently being tested, a new study led by...

Heart risks in middle age boost dementia risk later in life

Wed, 02/22/2017 - 19:00
Smoking, high blood pressure and diabetes were all dementia risks, with diabetes in middle age raising the risk almost as much as a genetic risk factor for Alzheimer's disease.

Kids with heart defects face learning challenges, inadequate school support

Wed, 02/22/2017 - 08:00
Children with congenital heart defects are less likely to meet minimum standards in third-grade reading and math end-of-year testing than peers.

Women with mild heart blockage report poorer health, more anxiety and negativity than men

Tue, 02/21/2017 - 21:00
Women with mild blockage of coronary arteries report poorer health, more anxiety and a more negative outlook than men with the same condition, according to new research in the American Heart...

What are the benefits and risks of testosterone therapy? Studies investigate

Tue, 02/21/2017 - 16:00
Five studies documenting the health effects of testosterone replacement therapy suggest the hormone improves bone density, but it may pose cardiac risk.

Radial access, same-day cardiac procedure could save $300 million annually

Tue, 02/21/2017 - 08:00
If hospitals can perform more transradial, same-day percutaneous coronary intervention, or PCIs, not only will patients benefit because it is associated with have less complications, but...

Heavy drinking may raise cardiovascular risk by aging the arteries

Tue, 02/21/2017 - 08:00
A new study suggests long-term, consistent heavy drinking may cause arteries to age prematurely and increase cardiovascular risk, especially in men.

Chest pain: New tool helps doctors decide when tests are needed

Fri, 02/17/2017 - 14:00
A two year follow-up on a study involving more than 10,000 people with stable chest pain finds that an online tool can accurately predict which patients are likely to have normal non-invasive tests...

Fish affected by Deepwater Horizon spill give clues to air pollution heart disease

Fri, 02/17/2017 - 08:00
A study by Manchester and Stanford scientists into the effects on fish of a 2010 oil disaster could shed new light on how air pollution affects humans' hearts.

Statin side effects are strongest predictor of failure to meet cholesterol targets

Wed, 02/15/2017 - 08:00
Statin side effects are the strongest predictor of failure to meet low-density lipoprotein (LDL) cholesterol targets, according to research published in the European Journal of Preventive...

Shock from heart device often triggers further health care needs

Wed, 02/15/2017 - 08:00
A shock from an implantable cardioverter defibrillator (ICD) may trigger an increase in health care needs for many people, regardless whether the shock was medically necessary, according to a new...

Dietary supplement could improve heart health

Wed, 02/15/2017 - 08:00
Dietary intervention could benefit heart health in those with muscular dystrophy. That's according to new research published in Experimental Physiology.

Abdominal fat may cause type 2 diabetes, heart disease

Wed, 02/15/2017 - 08:00
A new study finds that having a genetic predisposition to a higher waist-to-hip ratio adjusted for BMI is linked to type 2 diabetes and heart disease.