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- Ice in the Sunshine?
- Los Idus Marzo;
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Seller Inventory L About this Item: Textbook Binding. Condition: Used: Good. Condition: Buen estado. Published by Alianza Editorial Condition: Muy Bien. Published by Valdemar, Madrid About this Item: Valdemar, Madrid, But pica largely remains a medical mystery. Certainly its association with low iron is real, although oddly, pica appears in only about half of iron-deficient patients.
Hunt points to a phenomenon called the mammalian diving reflex as a possible reason the ice-chewing caused better test performance. When submerged in water, most air-breathing vertebrates slow down their heart rate and constrict blood vessels in their arms and legs. Crucially, the reflex is triggered by the face having contact with cold water, but not warm water. So perhaps the chill of chewing on ice cubes may lead to an increase of oxygenated blood to the brain, providing the cognitive boost that anemic patients need.
For those with enough iron, Hunt speculates, there would be no additional benefit to more blood flow. Catherine Broome, a haematologist with the Georgetown University School of Medicine, said she often sees pagophagia in her iron-deficient patients. The disorder appears to be caused by an iron deficiency, and supplements of the mineral tend to ease the cravings. But what is it about ice that makes it so irresistible?
A study proposes that, like a strong cup of coffee, ice may give those with insufficient iron a much-needed mental boost.
Hunt and her colleagues had both anaemic and healthy subjects complete a standardised, minute attention test commonly used to diagnose attention deficit hyperactivity disorder. Just before the test, participants were given either a cup of ice or lukewarm water to consume.
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Iron-deficient subjects who had sipped on water performed far more slugglishly on the test than controls, as expected. But those who ate ice beforehand did just as well as their healthy counterparts. For healthy subjects, having a cup of ice instead of water appeared to make no difference in test performance. Pagophagia is one of many types of pica, a disorder that encompasses daily craving and eating of unusual nonfoods such as clay, chalk, paste, cigarette butts or laundry starch.
America had a lot of problems. It also had a whole lot of ice. This video demonstrates the bonkers and dangerous practices of ice harvesting. It was the kind of job that just really sucked. Too few history teachers informed me that Thoreau was full of shit. His refuge on Walden Pond was within walking distance of a village, complete with neighbors, a church, and a store.
Their tools went to work in that winter of , removing giant blocks of ice from Walden Pond and any other frozen fresh water source. At first it looked like a vast blue fort or Valhalla; but when they began to tuck the coarse meadow hay into the crevices, and this became covered with rime and icicles, it looked like a venerable moss-grown and hoary ruin, built of azure-tinted marble, the abode of Winter, that old man we see in the almanac — his shanty, as if he had a design to estivate with us.
As a New Englander living through the Little Ice Age, Tudor was astonished to learn that some people living in the Caribbean had never seen ice. He soon began devising ways to export ice cut from local ponds and lakes to tropical climates. There was a bit of a learning curve to the new industry.
Related Los idus de marzo: La conjura que acabó con la vida de Julio César (Spanish Edition)
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