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Atrial fibrillation is associated with an increased risk of heart failure, dementia, and stroke. [3] [12] It is a type of supraventricular tachycardia. [14] Atrial fibrillation frequently results from bursts of tachycardia that originate in muscle bundles extending from the atrium to the pulmonary veins. [15]
A person likened to a Goofus Bird is a person low in intellectual curiosity and indifferent to their forward direction. [7] Goofus is a possible origin of the word doofus, slang for a person prone to foolishness or stupidity, perhaps influenced by the German word doof , meaning stupid.
New research suggests that there may be more than 10.5 million people in the United States living with atrial fibrillation, that is, three times more cases than experts had previously estimated.
[citation needed] In the class Aves (birds), there is only one family, Trochilidae (hummingbirds) [1] where the backward flying phenomenon can be found. In the class Insecta (insects), in the infraorder Anisoptera (dragonflies), [ 1 ] genus Hemaris (bee hawk-moths) [ a ] [ 2 ] and order Diptera (true flies), species with this ability can be ...
Satellite photograph of a mesa in the Cydonia region of Mars, often called the "Face on Mars" and cited as evidence of extraterrestrial habitation. Pareidolia (/ ˌ p ær ɪ ˈ d oʊ l i ə, ˌ p ɛər-/; [1] also US: / ˌ p ɛər aɪ-/) [2] is the tendency for perception to impose a meaningful interpretation on a nebulous stimulus, usually visual, so that one detects an object, pattern, or ...
Familial atrial fibrillation is an autosomal dominant heart condition that causes disruptions in the heart's normal rhythm. [ 1 ] [ 2 ] This condition is characterized by uncoordinated electrical activity in the heart's upper chambers (the atria ), which causes the heartbeat to become fast and irregular.
Ventricular fibrillation (V-fib or VF) is an abnormal heart rhythm in which the ventricles of the heart quiver. [2] It is due to disorganized electrical activity . [ 2 ] Ventricular fibrillation results in cardiac arrest with loss of consciousness and no pulse . [ 1 ]
This involves the simultaneous stimulation of two semicircular canals and is associated with a sudden tilting (forward or backwards) of the pilot's head while the aircraft is turning. [10] This can occur when tilting the head down (to look at an approach chart or to write on the knee pad), up (to look at an overhead instrument or switch), or ...