Cardiology

Could your smart watch alert you to risk of sudden death?

Researchers have developed an algorithm that could ultimately enable smart watches to alert wearers to potentially deadly changes in their heart rhythm. The research, presented at the British Cardiovascular Society conference, ...

Diseases, Conditions, Syndromes

Improving heart health may reduce the severity of COVID-19 disease

High blood pressure, smoking, obesity, heart disease and diabetes are associated with worse outcomes in patients with COVID-19, according to a study published today in European Heart Journal—Quality of Care and Clinical ...

Diseases, Conditions, Syndromes

US deaths from heart disease and diabetes climbed amid COVID

The U.S. saw remarkable increases in the death rates for heart disease, diabetes and some other common killers in 2020, and experts believe a big reason may be that many people with dangerous symptoms made the lethal mistake ...

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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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