Galaxies avoid an early death because they have a "heart and lungs" which effectively regulate their "breathing" and prevent them from growing out of control, a new study suggests.
Astronomy
Jul 11, 2024
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65
Researchers from Konstanz have measured the heart rate of bats over several days in the wild, including complete flights—the first time this has been done for a bat species. To record the heart rate of male common noctule ...
Plants & Animals
Jul 9, 2024
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229
This time of year, it's hard to escape sharks—on TV at least. But perhaps that heartbeat-like theme from "Jaws"—da-dum, da-dum—has you wondering, "What might I learn about my own heart from a shark?"
Plants & Animals
Jul 9, 2024
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0
Detroit's air quality ranked among the worst in the U.S. on Friday morning following the Fourth of July holiday fireworks use, posing "very unhealthy" conditions for children, seniors and people with certain health conditions ...
Environment
Jul 8, 2024
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0
Detroiters who face rising rents, poor living conditions and systemic barriers to affordable and safe housing are at greater risk of poor health, our research finds.
Social Sciences
Jul 4, 2024
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66
Ever wondered why you performed worse than expected in that final university exam where you sat in a cavernous gymnasium or massive hall, despite countless hours, days and weeks of study? Now you have a genuine reason—high ...
Education
Jul 3, 2024
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226
Common input synchronization is a process where systems or organisms exposed to an identical input respond similarly. People listening to a concert, for example, could experience a synchronization of their emotions.
Social Sciences
Jul 2, 2024
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22
Transferring mitochondria from a patient's healthy skeletal muscle to damaged, ischemic heart tissue has been shown to restore heart muscle, increase energy production, and improve ventricular function.
Cell & Microbiology
Jun 26, 2024
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8
Ferroptosis is a cell death mechanism that has only become known comparatively recently, being named in 2012. This so-called non-apoptotic cell death occurs when too many oxygen radicals and free iron are present in a cell. ...
Cell & Microbiology
Jun 25, 2024
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4
Space exploration has always captivated our imagination, offering the promise of discovering new worlds and pushing the boundaries of human capability. As commercial space travel becomes more accessible, individuals with ...
Space Exploration
Jun 21, 2024
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1
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