A
How to Prevent Dehydration
When the weather’s warm, you need to make sure you drink enough water. But did you know that you lose your sense of thirst as you get older? This means you're more likely to become dehydrated, making you more prone to (有倾向) falls, heart disease, urinary-tract infections, kidney stones and confusion. A study from Loughborough University in the UK has shown that drivers who had only a little water an hour made twice as many mistakes as motorists who were properly
hydrated. In fact, they made a similar number of errors to what you’d expect from someone over the drink-drive limit.
So how do you know when you’re dehydrated? Warning signs include:
*Feeling tired
*Dry mouth and dry skin
*Dark urine
*Reduced appetite (食欲)
*Reduced concentration
*Headache
*Constipation.
But you might not notice any symptoms (症状)at all，so to make sure you stay hydrated:
*Keep a glass of water by your side when you’re at home, and drink it regularly.
*Form a new drinking habit—for example, when watching TV, always reach for the water glass during an ad break.
*Take a small bottle of water with you when you go out.
*Always drink a large glass of water with a meal.
*Eat fruit and vegetables with high water content.
*Draw up a weekly water card—a bit like a coffee loyalty card—with a target of eight glasses of water a day. Mark it every time you have a glass of water. Award yourself a prize when it’s full at the end of the week,
*Drink water before, during and after you take any exercise.
21. The word “dehydration” in the title may probably mean .
A. loss of water from the body B. confusion of the mind
C. warning signs of illnesses D. a kind of weather sign
22. According to Paragraph 1, dehydration can .
A. occur only in warm weather
B. make you get older and older
C. cause physical and mental problems
D. be easily noticed in our daily life
23. To make sure you stay hydrated, you’d better .
A. take no notice of the warning signs
B. award yourself eight glasses of water
C. eat any fruit and vegetables you like
D. leave some water within your reach
