Water features include
1, pumping blood,
2, eliminate waste,
3, the body's moisture content is too low, renal function will be destroyed,
4, digestive and metabolic systems.
Sweating head to maintain the body temperature to regulate body temperature, breathing is to maintain the lungs moist, single-day per person per kilogram weighs about 1.5 to 2 liters of water, that ordinary daily consumption 3-4 liters of water before going to bed dining and more Drink plenty of water to help digestion? single-day loss of water per person is about 3-6 liters, 1-2 liters of urine ... but diarrhea will have an amazing 25 liters of water wastage? evaporation of moisture from breathing a single day there will be 1-2 per liter of capacity, if the dry weather will be more, and there are 1-2 liters of sweat evaporation, if the process will be hard climbing hourly 1-2 liters of sweat amount equal to bear 40pounds backpack walking sweat volume. If insufficient hydration slight headache and began to fatigue, if not added just 1.5 liters of water will be reduced 22% and 22% reduction in endurance oxygen intake (from heart and lung function tests) if more than three to 4 liters of water, your endurance at least 50% lower than that of oxygen intake decreased 25% (oxygenuptake) At this time the urine is dark yellow *, then the best choice for camping, because people in a dehydrated state, and its symptoms are loss of judgment, irritable temper, pulse speed, exhausted.
Human symptoms of dehydration
1, light: dry mucous membranes, micro sense thirst, normal pulse rate, urine dark yellow *
2, moderate: mucosal quite dry, thirsty, but weak pulse speed, yellowish urine *.
3, severe: mucous membranes, such as paper-like rather dry, thirst, drowsiness, weak pulse, but faster, shortness of breath, no urine and tears, shock and pale skin.
Extent of absorption of water than warm water is high, when the amount of hate sweating uphill added at any time to be very high, mainly to see the color of urine. Mountaineering general consume water replenishing method is preferably 250cc every 15 minutes, even an empty slow gastric motility, if the increase of 6 to 8 saccharide (especially glucosesucroseormaltodextrin) as to provide heat and improve the physical condition. Electrolytes such as sodium, potassium will be lost with sweat, you can not drink sports drinks replenish and maintain homeostasis, of course salts have this feature but can not eat too much, some of the drinks are not suitable for drinking, such as: alcohol: will force cells release out of water, coffee is a diuretic, juice too sweet. Usually you can use 3.5gsodiumchloride +1.5 gKCl +20 gsucrose +2.9 gtrisodiumcitrate / l to prevent dehydration method: Daily morning drink about 0.5 liters of water. During the campaign period to maintain 250cc/15 ~ 20min. Living in high altitude snow period and require more water. Avoid regular drink, coffee and tea. According to December 1994 the Backoacker a magazine about EnergyBar the rating, from the analysis of 17 kinds of energybar price Weight, Carories, carbos, protein, Fat, Favorsand Snickers taste they consider the evaluation of the best, but also cheap. Nutritionist's advice if you carry 50 pounds heavier backpack, 7 to 8 hours per day, the amount of action is best high-carbohydrate, low-fat foods, because the heat by 60 to 70% carbohydrates, and 30 or more Low-fat food category. When a person hiking the initial 20 to 30 minutes, the body's glycogen stored in the muscles started to provide the energy needed, of course, part of the blood glucose helpful when your glycogen deterioration, blood homorone began to change, insulin decreased , epinephrine up, then began to burn fat, increasing energy, after 90 minutes, blood sugar and fat into a drink from the main contributor 6-7% carbohydrate drink that is excellent than the high sugar concentration, airsoft parts
, osmotic pressure and this involves acceptable level of stomach, causing stomach cramp, nausea, nausea. Summer, usually hikers nearly seven liters of water daily loss, so the total daily energy consumption of nearly six grams of salt is the best advice.