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Signs of dehydrationThe answer is E. You may want to get yourself a glass of water, because all of the symptoms listed -- dizziness, clumsiness, muscle cramps in arms and legs, dark yellow urine, fatigue, and irritability -- are signs that dehydration is setting in. Dehydration occurs when the body loses water through bowel movements, perspiration and evaporation more quickly than it can be replaced. Water is essential to maintaining the correct volume of blood, which also contains electrolytes, salts that the body needs to regulate cell function. This explains why sweat tastes especially salty. Other symptoms indicating severe dehydration, called hypovolaemic shock, are sunken eyes, low blood pressure and fainting, bloating, and a fast, weak pulse. In order to stay well-hydrated when the mercury rises, drink a glass of water 30 minutes before exercising, and take water breaks about every 20 minutes. Avoid ice water, since cool liquids pass into the system most rapidly. After exercising, have some fruit juice or a sports drink to boost electrolytes quickly. And remember to drink regularly, even if you're not thirsty at the time. Feeling thirsty is your body's way of telling you it's already dehydrated.
July 6, 2002 |
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