Читать книгу Backpacking Arizona. From Deep Canyons to Sky Islands онлайн

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Dehydration is a constant concern for the Arizona backpacker, and all trips must be planned around available water sources. Never depend on a single water source, such as a spring, creek, rock tank, or even a water cache you’ve placed yourself. Many springs and creeks are seasonal, flowing only during and immediately after the winter and summer wet season. Even permanent springs and streams may go dry during droughts. Carry enough water as you hike so that you can retreat to the last water source if a source is unexpectedly dry. Drink plenty of water, more than required to quench your thirst. Your body loses moisture insensibly in dry air, and you start to become dehydrated before you become thirsty. Electrolyte replacement drinks are very useful. Become familiar with the symptoms of heat exhaustion and sunstroke. Heat exhaustion is a debilitating condition brought on by heat and dehydration. If untreated, heat exhaustion can lead to sunstroke, caused by a complete loss of the body’s ability to cool itself through sweating. Sunstroke is a serious medical emergency that is fatal if not treated immediately.