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1771: Carl Scheele (1742–1786) makes "fire air" (oxygen) by heating magnesium oxide.His findings are published in June 1774. 1774: Joseph Priestley (1733–1804), credited with the discovery of oxygen, publishes his work on "dephlogisticated air" oxygen 3 months after a report by Carl Scheele.
The strongest risk factor for developing asthma is a history of atopic disease; [66] with asthma occurring at a much greater rate in those who have either eczema or hay fever. [80] Asthma has been associated with eosinophilic granulomatosis with polyangiitis (formerly known as Churg–Strauss syndrome), an autoimmune disease and vasculitis. [81]
The fundamental problem in asthma appears to be immunological: young children in the early stages of asthma show signs of excessive inflammation in their airways. Epidemiological findings give clues as to the pathogenesis : the incidence of asthma seems to be increasing worldwide, and asthma is now very much more common in affluent countries.
In 2000-2001 asthma prevalence was monitored at 6.5%; by 2010-2011 a 4.3% increase was shown, with asthma prevalence totaling 10.8% of Canada's population. [29] Furthermore, asthma prevalence varies among the provinces of Canada; the highest prevalence is Ontario at 12.1%, and the lowest is Nunavut at 3.8%. [29]
Asthma + Lung UK (formally Asthma and Lung UK) is a British charity based in London, England. It focuses on respiratory health, in particular asthma and lung disease. [2] [3] The organisation was formed in January 2020 as Asthma UK and the British Lung Foundation Partnership as a result of a merger between Asthma UK and the British Lung Foundation.
Ancient history – Aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly five thousand years, beginning with the earliest linguistic records in the third millennium BC in Mesopotamia and Egypt .
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Thunderstorm asthma (also referred to in the media as thunder fever or a pollen bomb [1]) is the triggering of an asthma attack by environmental conditions directly caused by a local thunderstorm. Due to the acute nature of the onset and wide exposure of local populations to the same triggering conditions, severe epidemic thunderstorm asthma ...