Cardiology

3-D printing the human heart

A team of researchers from Carnegie Mellon University has published a paper in Science that details a new technique allowing anyone to 3-D bioprint tissue scaffolds out of collagen, the major structural protein in the human ...

Cardiology

Scientists discover new way fat harms your arteries

Scientists may have found a way that obesity directly damages the arteries and contributes to heart disease—a discovery that they say could eventually lead to new treatments.

Medical research

No bones about it, this protein slows down fracture-healing

Broken bones are a bigger deal the older you are: even after they've healed, the bones of older people are weaker and more likely to re-fracture. And since more than 6 million Americans break a bone each year, figuring out ...

Medical research

CAR T-cell therapy may be harnessed to treat heart disease

CAR T-cell therapy, a rapidly emerging form of immunotherapy using patients' own cells to treat certain types of cancers, may be a viable treatment option for another life-threatening condition: heart disease. In a first-of-its-kind ...

Cardiology

Native Hawaiians lowered blood pressure with hula dancing

Native Hawaiians who participated in a blood-pressure-lowering program incorporating their cultural dance of hula lowered their blood pressure more than those who received standard education on diet and exercise, according ...

Psychology & Psychiatry

Major depressive disorder blamed for major diseases

Major depressive disorder—referred to colloquially as the 'black dog' – has been identified as a genetic cause for 20 distinct diseases, providing vital information to help detect and manage high rates of physical illnesses ...

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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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