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How much hydration you need depends on factors like age, activity level and environment, but on average, women need about 11.5 cups of water daily, while men need about 15.5 cups, according to the ...
Mild cases of the "bends" and some skin symptoms may disappear during descent from high altitude; however, it is recommended that these cases still be evaluated. Neurological symptoms, pulmonary symptoms, and mottled or marbled skin lesions should be treated with hyperbaric oxygen therapy if seen within 10 to 14 days of development. [102]
Water intoxication can be prevented if a person's intake of water does not grossly exceed their losses. Healthy kidneys can excrete approximately 800 millilitres to one litre of fluid water (0.84–1.04 quarts) per hour. [15] However, stress (from prolonged physical exertion), as well as disease states, can greatly reduce this amount. [15]
The symptoms of dehydration become increasingly severe with greater total body water loss. A body water loss of 1-2%, considered mild dehydration, is shown to impair cognitive performance. [ 8 ] While in people over age 50, the body's thirst sensation diminishes with age, a study found that there was no difference in fluid intake between young ...
For seven of those days, I would consume only liquids that made up less than 250 calories a day. That’s a staggering decrease from the average American diet, which is north of 3,800.
According to Health, "Water fasting may have some benefits, but it also comes with risks. You may develop complications like dehydration, orthostatic hypotension, or hyponatremia.
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As depth increases, so does the pressure and hence the severity of the narcosis. The effects may vary widely from individual to individual, and from day to day for the same diver. Because of the perception-altering effects of narcosis, a diver may not be aware of the symptoms, but studies have shown that impairment occurs nevertheless. [11]