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The Antarctic ozone hole is an area of the Antarctic stratosphere in which the recent ozone levels have dropped to as low as 33 percent of their pre-1975 values. [47] The ozone hole occurs during the Antarctic spring, from September to early December, as strong westerly winds start to circulate around the continent and create an atmospheric ...
Tuberculosis is not purely a disease of the lungs that has symptoms of coughing. It may instead infect a wide range of other organs in the body. [309] Cancer cannot be treated by restricting food intake and so supposedly "starving" tumors. Rather, the health of people with cancer is best served by maintaining a healthy diet. [310]
For breast cancer, there is a replicated trend for women with a more "prudent or healthy" diet, i.e. higher in fruits and vegetables, to have a lower risk of cancer. [ 18 ] Unhealthy dietary patterns are associated with a higher body mass index suggesting a potential mediating effect of obesity on cancer risk.
The United States Food and Drug Administration (FDA) prohibits all medical uses of ozone "in any medical condition for which there is no proof of safety and effectiveness", stating "ozone is a toxic gas with no known useful medical application in specific, adjunctive, or preventive therapy. For ozone to be germicidal, it must be present in a ...
The amount of ozone manufactured for use in the food and other industries is reflected in the considerable effort placed on producing it efficiently in high performance ozone generators. [17] Where non-targeted antibiotic action is required, such as in water purification, it is widely used.
The signs and symptoms of refeeding syndrome can vary based on the severity of electrolyte disturbances, including weakness, arrhythmias, and respiratory difficulty. Hypophosphatemia, a key feature of refeeding syndrome, may lead to muscle weakness, heart failure, and impaired diaphragmatic function, while hypokalemia and hypomagnesemia can ...
Ozone in the troposhere is determined by photochemical production and destruction, dry deposition and cross-tropopause transport of ozone from the stratosphere. [2] In the Arctic troposphere, transport and photochemical reactions involving nitrogen oxides and volatile organic compounds (VOCs) as a result of human emissions also produce ozone resulting in a background mixing ratio of 30 to 50 ...
Ozone remains depleted in the midlatitudes of both hemispheres. The global-average total column ozone amount for the period 1997-2001 was approximately 3% below the pre-1980 average values. Models capture the observed long-term ozone changes in northern and southern midlatitudes.