News tagged with heart

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

Are energy drinks safe?

Despite reported health concerns, the popularity of energy drinks is steadily climbing. Between 2008 and 2012, for example, energy drink sales jumped by 60% in the United States. By 2017, annual energy drink sales in the ...

Sep 16, 2016
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The memory of a heart attack is stored in our genes

Both heredity and environmental factors influence our risk of cardiovascular disease. A new study, by researches at Uppsala University, shows now that the memory of a heart attack can be stored in our genes through epigenetic ...

Sep 16, 2016
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Occupational therapy reduces hospital readmissions

An independent study published in Medical Care Research and Review found that "occupational therapy is the only spending category where additional hospital spending has a statistically significant association with lower readmission ...

Sep 15, 2016
popularity4 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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