News tagged with heart

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

Gel implant might help fight heart failure

(HealthDay)—Injecting beads of gel into the wall of a still-beating heart has the potential to improve the health of patients with severe heart failure, according to a new study.

Nov 20, 2014
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Obesity fuels silent heart damage

Using an ultrasensitive blood test to detect the presence of a protein that heralds heart muscle injury, researchers from Johns Hopkins and elsewhere have found that obese people without overt heart disease ...

Nov 20, 2014
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Bad marriage, broken heart?

Older couples in a bad marriage—particularly female spouses—have a higher risk for heart disease than those in a good marriage, finds the first nationally representative study of its kind.

Nov 19, 2014
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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.

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