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Adaptations in humans can be physiological, genetic, or cultural, which allow people to live in a wide variety of climates. There has been a great deal of research done on developmental adjustment, acclimatization, and cultural practices, but less research on genetic adaptations to colder and hotter temperatures.
Learn if you’re drinking too much water here. Overhydration is the opposite of dehydration, but still involves an electrolyte imbalance. Learn if you’re drinking too much water here.
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]
Physical activity in extremely hot weather should be avoided. If a person starts to experience over heating, and symptoms of heat syncope, they should move or be moved to a shaded or cool area. It is also recommended to avoid alcoholic beverages in hot weather, because they cause dehydration which may worsen symptoms.
While being well-hydrated is an important part of our overall health and nutrition, and has even been linked to peak performance, Malik warns that being over-hydrated comes with its own issues ...
(One study found that cognitive impairment starts to become noticeable when you lose 2.8% of your body weight in fluid—which can happen when you do high-intensity exercise without drinking more ...
In addition, urban areas can contribute to localized warming known as heat islands, that inhibit the dispersion of these pollutants and worsen air stagnation. [1] Weather fluctuations may cause a lack of precipitation and storm systems that contribute to the pollutants being stagnant and persisting for an extended period of time. [5]
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