Psychology & Psychiatry

Trauma of migrant separation lingers long after reunification

The number of unaccompanied migrant children coming to the United States is exploding. According to the U.S. Department of Health and Human Services, 122,000 children were taken into custody at the U.S.-Mexico border in fiscal ...

Cardiology

Prediabetes linked to higher heart attack risk in young adults

Young adults with higher than normal blood sugar levels that signal prediabetes were more likely to be hospitalized for heart attack compared to their peers with normal blood sugar levels, according to in preliminary research ...

Health

On nutrition: Old and new diet trends

This is how old I am: A few decades ago, I sat in on a nutrition debate between Dr. Dean Ornish and Dr. Robert Atkins, well-known cardiologists with polar opposite views on the best diet to lose weight and prevent heart ...

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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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