News tagged with heart

Related topics: heart attack · heart failure · heart disease · heart muscle · patients

Research suggests new contributor to heart disease

Medical professionals have long known that the buildup of plaque in arteries can cause them to narrow and harden, potentially leading to a whole host of health problems—including heart attack, heart disease and stroke. ...

May 18, 2016
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Common antacid linked to accelerated vascular aging

Chronic use of some drugs for heartburn and gastroesophageal reflux (GERD) speeds up the aging of blood vessels, according to a published paper in Circulation Research (early online), an American Heart Association journal. ...

May 10, 2016
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How to increase the fat burned during exercise

During exercise, oxidation of fat and carbohydrates depends on the intensity and duration of the activity. A new study analyses the effect of consuming an alkaloid, p-synephrine, on the burning of lipids and refutes the value ...

Jul 19, 2016
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Babies with Down syndrome have healthier hearts

Compared with the early 1990s, babies born with Down syndrome (trisomy 21) have a lower risk of developing serous heart problems, according to a new registry study from Karolinska Institutet published in Pediatrics, the journal ...

Jun 02, 2016
popularity542 comments 0

Heart

The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."

The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.

This text uses material from Wikipedia, licensed under CC BY-SA

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