News tagged with heart

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

Niacin too dangerous for routine cholesterol therapy

After 50 years of being a mainstay cholesterol therapy, niacin should no longer be prescribed for most patients due to potential increased risk of death, dangerous side effects and no benefit in reducing heart attacks and ...

Jul 16, 2014
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Scientists explain stress-heart attack link

Scientists said Sunday they may have unravelled how chronic stress leads to heart attack and stroke: triggering overproduction of disease-fighting white blood cells which can be harmful in excess.

Jun 22, 2014
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A shot against heart attacks?

Harvard Stem Cell Institute (HSCI) scientists collaborating with researchers at the University of Pennsylvania have developed a "genome-editing" approach for permanently reducing cholesterol levels in mice ...

Jun 10, 2014
popularity 3.9 / 5 (26) | comments 1

Can narcissists be moved to show empathy?

Researchers at the University of Surrey and the University of Southampton have investigated whether narcissists can elicit empathy for another person's suffering. It has been well documented that narcissists lack empathy, ...

May 30, 2014
popularity 4.2 / 5 (9) | comments 2

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