A heart attack is a life-threatening condition, with patients remaining at risk of premature death long after the actual attack—50% to 60% of patients die subsequently as a result of sudden cardiac death, triggered by cardiac ...
Jun 28, 2024
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The human body has sophisticated defenses against the deposition of calcium minerals that stiffen heart tissues, researchers at the University of Illinois Urbana-Champaign and collaborators at UCLA Health and the University ...
Jun 27, 2024
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A large analysis of data from nearly 400,000 healthy U.S. adults followed for more than 20 years has found no association between regular multivitamin use and lower risk of death. The study, "Multivitamin Use and Mortality ...
Jun 26, 2024
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Nearly a third of all adults are not doing enough physical activity, posing a growing threat to health across the world, a major study said on Wednesday.
Jun 26, 2024
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Using animals to study heart disease doesn't always translate well to human health outcomes, and human heart cells available for research don't work outside the human body.
Jun 25, 2024
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When operating on the heart, surgeons may find another issue in the patient. Depending on what they see, the surgical team may address on the secondary condition during the same operation.
Jun 26, 2024
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A device for monitoring sweat and hydration based on a rigorous study from the University of Massachusetts Amherst is commercially available for the first time and ready to help protect "industrial athletes" from dehydration ...
Jun 24, 2024
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An announcement from the National Academies of Science, Engineering and Medicine of a consensus definition of "long COVID" mentioned that it was not the final word on the condition but that the definition would be revised ...
Jun 24, 2024
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A group has proposed a new concept of mechanobiomaterials, which is inspired by the natural phenomenon that biomechanics mediate tissue repair and regeneration. The rationale behind this new concept is to program the biological ...
Jun 28, 2024
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The Alzheimer's Association has published revised criteria for the diagnosis and staging of Alzheimer's disease that are based on the biology of the disease and reflect recent advancements in research, diagnostics and treatment.
Jun 28, 2024
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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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