Heart

The heart is a hollow, muscular organ in vertebrates, responsible for pumping blood through the blood vessels by repeated, rhythmic contractions. The term cardiac, as in cardiology, means - related to the heart - and comes from the Greek word, kardia, for heart.

Heart - most related articles:

- Stress may condition heart to survive heart attack - 2.2
- Heart stem cells grow into heart muscles - 2.1
- New CRT therapy prevents heart failure - 2
- Eating broccoli may help fight heart disease - 2

Heart articles

Sleep apnea treatment reduces hypertension and heart disease risk
Two studies that included adults with obstructive sleep apnea examined the effectiveness of reducing the risk of cardiovascular outcomes, including high blood pressure, by treatment with continuous positive airway pressure (CPAP).

Z-pack antibiotic azithromycin carries heart risk
Vanderbilt researchers have discovered a rare, but important risk posed by the antibiotic azithromycin, commonly called a "Z-pack." The study found a 2.5-fold higher risk of death from cardiovascular death in the first five days of taking azithromycin when compared with another common antibiotic or no antibiotics at all.

Heart failure patients may get benefit from testosterone supplements
Testosterone supplements helped heart failure patients breathe better and exercise more. This new research analyzed four randomized clinical trials of patients with moderate to severe chronic heart failure. Patients were given commercial testosterone supplements by injection, patch or gel.

Sugar sweetened drinks increases heart disease risk in men
Men who drank a 12-ounce sugar-sweetened beverage a day had a 20 percent higher risk of heart disease compared to men who didn't drink any sugar-sweetened drinks, according to research published in Circulation, an American Heart Association journal.

Citrus fruit may lower women's stroke risk
A compound in citrus fruits may reduce your stroke risk, according to research reported in Stroke: Journal of the American Heart Association.

Circadian rhythms linked to sudden cardiac attack
A new study uncovers the first molecular evidence linking the body's natural circadian rhythms to sudden cardiac death (SCD). Ventricular arrhythmias, or abnormal heart rhythms, are the most common cause of sudden cardiac death: the primary cause of death from heart disease. They occur most frequently in the morning waking hours, followed by a smaller peak in the evening hours.

Vitamin D therapy does not improve heart disease risk
Patients with chronic kidney disease who received the vitamin D compound paricalcitol for up to 48 weeks did not show improvement on measures of cardiac structure, function, or left ventricular mass, compared to patients who received placebo.

Most major air pollutants increases heart attack risk
Short-term exposure (for up to 7 days) to all major air pollutants, with the exception of ozone, is significantly associated with an increased risk of heart attack. The potentially harmful effect of episodes of high air pollution on health has been suspected for more than 50 years.

Heartburn and acid reflex medicines increase hip fracture risk
Post-menopausal women are 35% more likely to suffer hip fracture if they take indigestion drugs, known as proton pump inhibitors (PPIs), a figure which increases to 50% if they are also current or former smokers.

Blood pressure is to be checked in both arms
Measuring blood pressure in both the right and left arm may be an effective way of catching a silent but serious disease of the blood vessels - peripheral artery disease. So, next time you get your blood pressure checked, ask your health provider to take measurements on both arms.

Antidepressants use in pregnancy may risk newborn with high blood pressure
Use of anti-depressants during pregnancy is risky for new borns to have persistent pulmonary hypertension - high blood pressure in the lungs, revealed by researchers.

Anticoagulant Dabigatran linked to heart attack or MI
The anticoagulant dabigatran is associated with an increased risk of myocardial infarction (heart attack) or acute coronary syndrome in a broad spectrum of patients when tested against some other medicines.

Bariatric surgery reduces heart attack and stroke in obese
Among obese individuals, having bariatric surgery was associated with a reduced long-term incidence of cardiovascular deaths and events such as heart attack and stroke, revealed by researchers.

Low calorie diet improves heart function in diabetic obese patients
A low-calorie diet eliminates insulin dependence and leads to improved heart function in obese patients with type 2 diabetes. It is striking to see how a relatively simple intervention of a very low calorie diet effectively cures type 2 diabetes mellitus. Moreover, these effects are long term.

Stent design may put patients at risk of heart attack
Stent shortening - a newly observed deformity in cases using a particular family of stents, can cause serious complications for patients, says researchers. In this case the stent clotted off and the patient had a heart attack.

Evacetrapib can increase good cholesterol HDL
Researchers at Cleveland Clinic reported that administration of a new drug– evacetrapib – can dramatically increase HDL (good) cholesterol, while significantly lowering LDL (bad) cholesterol). At the highest tested dosage, the levels of HDL more than doubled.

Yearly visit to dentist can reduce heart attack risk
Tooth scaling at least once a year reduced heart attack and stroke risks. Professional tooth scaling was associated with fewer heart attacks and strokes in a study from Taiwan presented at the American Heart Association's Scientific Sessions 2011.

Sugar sweetened drinks may increase heart risk in women
Drinking two or more sugar-sweetened beverages a day may expand a woman's waistline and increase her risk of heart disease and diabetes. In a new study, researchers compared middle-aged and older women who drank two or more sugar-sweetened beverages a day, such as carbonated sodas or flavored waters with added sugar, to women who drank one or less daily.

Financial reimbursement increases cardiac stress tests in patients
Financial reimbursement and ownership of cardiac imaging equipment appears to influence physicians' use of cardiac stress testing. The study finds that doctors who are reimbursed for both performing the test using their equipment and then interpreting the results were 50 to 100 percent more likely to order cardiac imaging tests on their patients than those who don't bill the fees.

Transcatheter aortic valve replacement TAVR shows superiority in heart patients
A two-year study of patients in the landmark PARTNER trial, which compared transcatheter aortic valve replacement (TAVR) in patients who have severe aortic stenosis and are not candidates for open heart surgery, confirm the one-year findings and support the role of TAVR as the standard of care.

Burmese python heart growth may benefit diseased human heart
Now, Burmese python's heart may diseased human hearts, revealed by researchers from University of Alabama, USA. Three fatty acids involved in the extreme growth of Burmese pythons' hearts following large meals could prove beneficial in treating diseased human hearts.

Overweight or obese kids at greater risk of high blood pressure
Overweight or obese children are at three times greater risk for high blood pressure than children of normal weight, according to researchers from the Regenstrief Institute and Indiana University School of Medicine.

Expandable prosthesis resolves advanced aortic valve disease
Among individuals 65 years and older, as many as 30 percent have aortic valve sclerosis or stenosis and as a result of their deteriorating health, they cannot enjoy a normal lifestyle.

Healthy lifestyle behaviors lower heart failure risk
If you don't smoke, aren't overweight, get regular physical activity and eat vegetables, you can significantly reduce your risk for heart failure, according to research reported in Circulation: Heart Failure, an American Heart Association journal.

Mild memory loss and thinking problems may impact life expectancy
Cognitive impairment, especially at the moderate to severe stages has an impact on life expectancy similar to chronic conditions such as diabetes or chronic heart failure, revealed by Regenstrief Institute and Indiana University researchers in a study "Cognitive Impairment: An Independent Predictor of Excess Mortality. A Cohort Study" published in Annals of Internal Medicine.

Door-to-balloon time is 90 min in 91% of heart attack patients in US
The period from hospital arrival to angioplasty is called "door-to-balloon" time (D2B). A new study showed that 91 percent of patients were treated in a D2B time of less than 90 minutes in 2010, compared with 44 percent in 2005.

Former US President Bill Clinton turns to vegan diet
Former US President Bill Clinton is speaking out about his plant based, heart healthy diet, saying that he believes the vegan regimen or vegan diet is helping to reverse the damage to his heart and blood vessels caused by cardiovascular heart disease.

Depression linked to 29% increased risk of stroke in women
Depressed women may face an increased risk of stroke, according to new research reported in Stroke: Journal of the American Heart Association. A variety of mechanisms may lead depression to cause stroke.

Rivaroxaban can prevent strokes in atrial fibrillation patients
Rivaroxaban, an anti-clotting drug, was shown to be an attractive alternative to warfarin in the prevention of stroke in patients with atrial fibrillation, revealed by researchers recently.

Soy milk protein dietary supplements lower blood pressure
Milk and soy protein supplements were associated with lower systolic blood pressure compared to refined carbohydrate dietary supplements. The study's results suggest that partly replacing refined carbohydrates with foods or drinks high in soy or milk protein may help prevent and treat high blood pressure, said Jiang He, M.D., Ph.D., lead researcher of the study in Circulation: Journal of the American Heart Association.

Chantix increases risk of heart attack or arrhythmia
Smoking cigarettes is a dangerous habit that many are struggling to break, but for the smokers who choose to use one of the most popular smoking cessation drugs on the market, new warnings about the risk of serious cardiovascular events are on their way. Use of varenicline – marketed by Pfizer under the brand name Chantix – is associated with a 72 percent increased risk of hospitalization due to a serious adverse cardiovascular (CV) event, such as heart attack or arrhythmia.

Low body fat may not lower risk for heart disease and diabetes
Researchers revealed that some people with a specific form of the gene are more likely to have lower percent body fat, but also more likely to develop heart disease and type 2 diabetes, because the gene lowers only the "subcutaneous" fat under the skin, but not the more harmful "visceral" fat that surrounds organs. People with this gene variant are less able to store fat safely under the skin and may, therefore, store fat elsewhere in the body, where it may interfere with normal organ function.

Blood pressure changes are age related but important for health
The main causes of increases in blood pressure over a lifetime are modifiable and could be targeted to help prevent cardiovascular disease: although high blood pressure sometimes has no obvious symptoms, this condition, which affects about a third of the adult UK and US populations, can lead to life-threatening heart attacks and stroke, so reducing blood pressure is very important for health.

Use of clot busters for stroke increased from 2005 to 2009
The use of clot-busting drugs to treat acute ischemic stroke increased from 2005 through 2009 - but is still low, according to research reported in Stroke: Journal of the American Heart Association.

Low carb, higher fat diets cause no arterial health risks
Overweight and obese people looking to drop some pounds and considering one of the popular low-carbohydrate diets, along with moderate exercise, need not worry that the higher proportion of fat in such a program compared to a low-fat, high-carb diet may harm their arteries, suggests a pair of new studies by heart and vascular researchers at Johns Hopkins.

Surgical removal of tonsils and appendix may lead to heart attack
The surgical removal of the appendix and tonsils before the age of 20 was associated with an increased risk of premature heart attack in a large population study performed in Sweden. Tonsillectomy increased the risk by 44% (hazard ratio 1.44) and appendectomy by 33% (HR 1.33).

New form of cholesterol revealed in people at high risk of heart disease
Scientists from the University of Warwick have discovered why a newly found form of cholesterol seems to be 'ultra-bad', leading to increased risk of heart disease. The discovery could lead to new treatments to prevent heart disease particularly in people with type 2 diabetes and the elderly.

Niacin and statin treatment did not protect heart
The National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health has stopped a clinical trial studying a blood lipid treatment 18 months earlier than planned.

1 in 5 young adults has high blood pressure - hypertension
The number of young adults in the United States with high blood pressure may be much higher than previously reported, according to a new study by researchers at the University of North Carolina at Chapel Hill.

Baked or broiled fish lowers heart failure risk
The risk of developing heart failure was lower for postmenopausal women who frequently ate baked or broiled fish, but higher for those who ate more fried fish, in a study reported in Circulation: Heart Failure, an American Heart Association journal.

Master switch gene for obesity and diabetes discovered
A team of researchers, led by King's College London and the University of Oxford, have found that a gene linked to type 2 diabetes and cholesterol levels is in fact a 'master regulator' gene, which controls the behaviour of other genes found within fat in the body.

Coronary artery bypass graft surgeries decreasing in US
Between 2001 and 2008, the annual rate of coronary artery bypass graft surgeries performed in the United States decreased by more than 30 percent, but rates of percutaneous coronary interventions (PCI; procedures such as balloon angioplasty or stent placement used to open narrowed coronary arteries) did not change significantly.

Low sodium excretion linked to higher heart disease incidence
In a study conducted to examine the health outcomes related to salt intake, as gauged by the amount of sodium excreted in the urine, lower sodium excretion was associated with an increased risk of cardiovascular death, while higher sodium excretion did not correspond with increased risk of hypertension or cardiovascular disease complications.

A better imaging agent for heart disease and breast cancer
Scientists are reporting development of a process for producing large quantities of a much-needed new imaging agent for computed tomography (CT) scans in heart disease, breast cancer and other diseases, and the first evidence that the material is safe for clinical use.

Heart attacks are more serious if they occur at certain times of the day
People who have a heart attack are likely to be more seriously affected if the attack happens in the morning, reveals research published ahead of print in Heart journal.

HIV infection may be a risk factor for heart failure
Patients with HIV infection without a prior history of coronary heart disease may be at a higher risk of developing heart failure, according to a report in the Archives of Internal Medicine.

Low health literacy linked to higher rate of death in heart failure patients
An examination of health literacy (such as understanding basic health information) among managed care patients with heart failure, a condition that requires self-management, found that nearly one in five have low health literacy, which was associated with a higher all-cause risk of death.

Evidence based treatments decrease risk of death among heart attack patients
In an analysis of data from a coronary care registry in Sweden, between 1996-2007 there was an increase in the prevalence of use of evidence-based invasive procedures and pharmacological therapies for treatment of a certain type of heart attack, and a decrease in the rate of death at 30 days and one year after a heart attack for these patients.

Omega 3 good for heart not for prostate
The largest study ever to examine the association of dietary fats and prostate cancer risk has found what's good for the heart may not be good for the prostate.

Tai chi may improve quality of life in chronic heart failure patients
Tai chi, the ancient Chinese meditative exercise, may improve quality of life, mood and exercise self-efficacy in chronic heart failure patients, according to research led by a team at Beth Israel Deaconess Medical Center.

Acupuncture relieves hot flashes from prostate cancer treatment
Acupuncture provides long-lasting relief to hot flashes, heart palpitations and anxiety due to side effects of the hormone given to counteract testosterone, the hormone that induces prostate cancer, according to a study published in the April issue of the International Journal of Radiation Oncology•Biology•Physics, an official journal of the American Society for Radiation Oncology (ASTRO).

Stem cells repair heart damage in a human trial
Researchers have shown for the first time that stem cells injected into enlarged hearts reduced heart size, reduced scar tissue and improved function to injured heart areas, according to a small trial published in Circulation Research: Journal of the American Heart Association.

Diabetes drug rosiglitazone linked to heart problems
A new study published on bmj adds to mounting evidence that rosiglitazone - a drug used to treat type 2 diabetes - is associated with an increased risk of major heart problems.

Stroke survivors with irregular heartbeat may have higher risk of dementia
Stroke survivors who have an irregular heartbeat called atrial fibrillation may be at higher risk of developing dementia than stroke survivors who do not have the heart condition, according to research published in the March 8, 2011, print issue of Neurology®, the medical journal of the American Academy of Neurology.

Coffee drinking lowers stroke risk in women
Drinking more than a cup of coffee a day was associated with a 22 percent to 25 percent lower risk of stroke, compared with those who drank less, in a study reported in Stroke: Journal of the American Heart Association.

Higher education or advanced degrees lower blood pressure in women
Freshmen on the eve of finals and graduate students staring down a thesis committee may not feel this way, but the privilege of obtaining an advanced education correlates with decades of lower blood pressure, according to a study led by a public health researcher at Brown University. The benefit appears to be greater for women than for men.

High fiber diet may lead to a healthy longer life
Dietary fiber may be associated with a reduced risk of death from cardiovascular, infectious and respiratory diseases, as well as a reduced risk of death from any cause over a nine-year period.

Stroke rate declined in middle aged, elderly, increased in young
The number of acute ischemic stroke hospitalizations among middle-aged and older men and women fell between 1994 and 2007, but sharply increased among those under age 35 - including teens and children - according to research presented at the American Stroke Association's International Stroke Conference 2011.

Large eggs lower in cholesterol and higher in vitamin D
Eggs are lower in cholesterol than previously thought, according to new nutrition data from the United States Department of Agriculture's Agricultural Research Service (USDA-ARS).

CRT-D more effective in women with heart failure
Women receive a significantly greater benefit – a 70 percent reduction in heart failure and a 72 percent reduction in death – from cardiac resynchronization therapy with defibrillator (CRT-D) than men, revealed by US researchers.

Skin cells converted to beating heart cells
Adult skin cells are converted into beating heart cells efficiently without generating embryonic-like stem cells, revealed by researchers.

Statins not for low risk patients
There is not enough evidence to recommend the widespread use of statins in people with no previous history of heart disease, according to a new Cochrane Systematic Review.

Walking 3000 steps every day reduces diabetes risk
Simply taking more steps every day not only helps ward off obesity but also reduces the risk of diabetes, finds a study published in BMJ UK.

New therapy for obstructive sleep apnea and snoring
Snoring may be an irritating phenomenon depriving you of good sleep. It can signal sleep apnea and may lead to even a heart attack.

Rheumatoid arthritis increases heart attack risk 60%
The risk of having a heart attack is 60 per cent higher just a year after a patient has been diagnosed with rheumatoid arthritis, according to research published in the December issue of the Journal of Internal Medicine.

Healthy lifestyle choices lower risk of a first stroke 80%
Healthy lifestyle choices and emergency room interventions can help prevent first-time strokes, according to revised American Heart Association/American Stroke Association guidelines.

Recurrent miscarriage raises heart attack risk
Recurrent miscarriage increases a woman's chance of having a heart attack fivefold in later life, indicates research published online in the journal Heart.

Binge drinking may increase heart disease risk
Belfast's binge drinking culture could be behind the country's high rates of heart disease, according to a paper published on bmj.com today.

Mandatory curbs on food salt content 20 times effective
Imposing statutory limits on the salt content of processed foods could be 20 times more effective than voluntary curbs by industry, finds research published online in the journal Heart.

Avandia use is restricted for diabetes patients
FDA will restrict the use of the diabetes drug Avandia (rosiglitazone) to patients with Type 2 diabetes who cannot control their diabetes on other medications. Avandia may elevate risk of cardiovascular events, such as heart attack and stroke.

Chest compression approach better after cardiac arrest
Chest compressions before defibrillation in patients with sudden cardiac arrest is equally successful as immediate treatment with an electrical defibrillator, according to a new study by the University of Michigan Health System.

Natural plant sunscreen shows promise in preventing skin cancer
Maybe you worshipped the sun in your youth or weren't as meticulous as you should have been with sunscreen. If so, take heart: Scientists at The University of Texas Health Science Center San Antonio are finding that certain plant substances, when given in combinations, may suppress damage that can cause skin cancer.

Margarines with low Omega-3 don't appear to protect heart patients
A diet enriched with omega-3 fatty acids don't appear to give additional protection against further cardiac trouble in patients, revealed by Dutch researchers.

Heart's sounds can help diagnose heart failure
For emergency department patients with shortness of breath and a risk of heart failure, physicians usually grab one thing first: a stethoscope.

95 genetic variants linked to cholesterol, triglycerides
Researchers have discovered or confirmed 95 regions of the human genome where genetic variants are associated with blood cholesterol and triglyceride levels, which are major indicators of heart disease risk.

Calcium supplements may increase heart attack risk
Calcium supplements, commonly taken by older people for osteoporosis, are associated with an increased risk of a heart attack, revealed by researchers. The results suggest that a reassessment of the role of calcium supplements in osteoporosis management is needed.

Folic acid and vitamin B12 have no beneficial effects in heart disease
A new study revealed that the substantial long-term reductions in blood homocysteine levels with folic acid and vitamin B12 supplementation did not have beneficial effects on vascular outcomes but were also not associated with adverse effects on cancer incidence.

Cancer risks in blood pressure medicines
University Hospitals Case Medical Center cardiologists have uncovered new research showing an increased risk of cancer with a group of blood pressure medications known as angiotensin-receptor blockers (ARBs).

Readmission rate has increased for heart failure patients
An analysis of Medicare data from 1993 through 2006 for older patients hospitalized for heart failure indicates that along with a decrease in hospital length of stay, the rate of in-hospital and 30-day mortality has decreased, while the rate of hospital readmission and discharge to skilled nursing facilities has increased, according to a study in the June 2 issue of JAMA.

Long term use of heartburn drugs linked to fractures
The U.S. Food and Drug Administration warned consumers and health care professionals about a possible increased risk of fractures of the hip, wrist, and spine with high doses or long-term use of a class of medications called proton pump inhibitors.

More good cholesterol is not always good for health
We've all heard about the importance of raising HDL, or the so-called "good" cholesterol, and lowering LDL, or "bad" cholesterol, to improve heart health. While we've come to assume HDL cholesterol is an inherently good thing, a new study shows that for a certain group of patients, this is not always the case.

World leaders focus on stroke prevention, care
On the 40th anniversary of the journal Stroke: Journal of the American Heart Association, stroke leaders from around the world celebrated stroke research accomplishments and set an agenda for the future, according to a special report in the journal.

Supercomputer can predict heart attack
EPFL Laboratory of Multiscale Modeling of Materials, in Switzerland, has developed a flowing 3D model of the cardiovascular system that should allow for predictions of certain heart diseases before they become dangerous.

Home monitoring web based tool improves blood pressure control
A pharmacist-led home blood pressure monitoring (HBPM) program supported by the American Heart Association's Heart 360 website dramatically improved blood pressure control for patients with uncontrolled hypertension, according to a study.

A new drug may reduce inflammation and atherosclerosis
A clinical study directed by Dr. Jean-Claude Tardif of the Montreal Heart Institute confirms the potential of a medication to reduce inflammation in patients with atherosclerosis.

Smoking ban would reduce heart attack admissions in hospitals
Smoking ban would save more than $90 million in US and significantly reduce hospitalizations for heart attack, according to a Henry Ford Hospital study.

Ablation heart procedure reduces risk of Alzheimer and stroke
Researchers found that ablation treatment can eliminate serious risks associated with atrial fibrillation. New research was presented at National Heart Rhythm Society.

Eating nuts improve blood cholesterol levels
Consuming more nuts appears to be associated with improvements in blood cholesterol levels, according to a pooled analysis of data from 25 trials reported in the May 10 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

Chocolate reduces blood pressure and heart disease risk
Easter eggs and other chocolate may be good for you – at least in small quantities and preferably if it's dark chocolate – according to research that shows just one small square of chocolate a day can lower your blood pressure and reduce your risk of heart disease.

Walnuts may help fight prostate cancer
Scientists in California are reporting for the first time that walnuts - already renowned as a rich source of omega-3 fatty acids that fight heart disease - reduce the size and growth rate of prostate cancer in test animals.

Replacing saturated fat with PUFA is good for the heart
The replacement of dietary saturated fatty acids with polyunsaturated fatty acids reduces coronary heart disease events, bringing much needed scientific evidence to an issue debated by experts and clinical guidelines.

Extreme obesity affecting more children at 10 - 12 years of age
Extreme obesity is affecting more children at younger ages, with 12 percent of black teenage girls, 11.2 percent of Hispanic teenage boys, 7.3 percent of boys and 5.5 percent of girls now classified as extremely obese.

Safely reduce BP in patients with diabetes and heart disease
New study revealed that there is an increased risk of heart attack and stroke for patients having blood pressure either too high or too low. Systolic blood pressure above 120 in patients with diabetes and coronary artery disease is safer. Levels between 130 and 140 appear to be the most healthful.

Weight loss diets reduce atherosclerosis
A two-year study led by researchers at Ben-Gurion University of the Negev (BGU) found that healthy, long-term weight loss diets can significantly reverse carotid (main brain artery) atherosclerosis, a direct risk factor for strokes and heart attacks.

Soluble fiber boosts immune system and immunity
Soluble fiber - found in oats, apples, and nuts, for starters reduces the inflammation associated with obesity-related diseases and strengthens the immune system, revealed by researchers.

HbA1c accurately predicts future diabetes
Measurements of hemoglobin A1c (HbA1c) more accurately identify persons at risk for clinical outcomes than the commonly used measurement of fasting glucose, according to a study by researchers at the Johns Hopkins Bloomberg School of Public Health.

Obese kids show early warning signs for future heart disease
Obese children as young as 3 years old have elevated levels of C-reactive protein, a marker of inflammation that in adults is considered an early warning sign for possible future heart disease, revealed by researchers.

Safety concern for HIV drug combination
The U.S. Food and Drug Administration announced preliminary data suggesting that Invirase (saquinavir) in combination with Norvir (ritonavir) may have potentially important adverse effects on the heart.

Exercise can reduce anxiety symptoms by 20 percent
The anxiety that often accompanies a chronic illness can chip away at quality of life and make patients less likely to follow their treatment plan. But regular exercise can significantly reduce symptoms of anxiety, a new University of Georgia study shows.

High blood pressure a neglected disease in US
Public health officials and health care providers need to step up their efforts to reduce Americans' increasing rates of high blood pressure and better treat those with the condition.

100 Heart articles listed above.

What is Heart
The heart is a hollow, muscular organ in vertebrates, responsible for pumping blood through the blood vessels by repeated, rhythmic contractions. The term cardiac, as in cardiology, means - related to the heart - and comes from the Greek word, kardia, for heart.

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