One day, a poor man, who had only one piece of bread to eat, was walking past a restaurant. There was a large pot of soup on the table. The poor man held his bread over the soup, so the steam from the soup went into the bread, and gave it a good smell. Then he ate the bread.

    The restaurant owner was very angry at this, and he asked the man for money, in exchange for the steam from the soup. The poor man had no money, so the restaurant owner took him to Nasreddin, who was a judge at that time. Nasreddin thought about the case for a little while.

    Then he took some money from his pocket. He held the coins next to the restaurant owner's ear, and shook them, so that they made a dingling (叮当声) noise.

    “What was that?” asked the restaurant owner.

    “That was payment for you,” answered Nasreddin.

    “What do you mean? That was just the sound of coins!” said angrily the restaurant owner.

    “The sound of the coin is payment for the smell of the soup,” answered Nasreddin. “Now go back to your restaurant.”

    Many kids don't drink enough water daily, according to a new study. The study's lead author, Erica Kenney, at first planned to look into the amount of sugary drinks kids were drinking in schools. However, during her research she found that many kids were simply not drinking enough water.

    Kenney and her team examined data from a group of 4,000 children, aged 6 to19. The data was taken from the National Health and Nutrition Survey, a study on the health of children in the United States done each year by the Center for Disease Control and Prevention.

    While looking through the survey results, she noticed that more than half of the kids who took part in the study were dehydrated (脱水的). Of that group, boys were 76% more likely than girls not to have enough water in their system. Nearly one quarter of the kids in the survey reported drinking no plain water at all.

    “These findings highlight (突出) a possible health issue that wasn't given a lot of attention in the past,” Kenney said in a statement. “Even though for most of these kids this is not an immediate and great health risk, this is an issue that could really be reducing quality of life and well-being for many children and youth.”

    The United States-National Agriculture Library says average kids need between 10 to 14 cups of water every day. This water can come from a mix of drinks and foods that contain high amounts of water, such as celery, melons or tomatoes. It is also suggested that fluids (液体) come from water instead of sugary drinks that are high in calories and can lead to weight problems.

Healthy Sleep Tips

    Keep a regular bed and wake time schedule. Go to bed at the same time every night. Try not to break this rule on weekends when it may be easy to stay up late. As with your bedtime, try to keep your regular wake time even on weekends.

     When it's time to sleep, make sure that your environment is dark. Heavy curtains or shades can help block light from windows, or you can try an eye mask to cover your eyes. A bedroom that is too hot or too cold can also influence sleep quality.

    Turn off your TV. Many people use the television to fall asleep or relax at the end of the day. However, television actually makes the mind excited, rather than relaxing it.

     Exercise helps promote restful sleep if it is done several hours before you go to bed. Exercise can help you fall asleep faster and sleep more soundly. Try to finish exercising at least three hours before bed or work out earlier in the day.

    Ask your doctor for advice. Use a sleep diary and talk to your doctor. Note what type of sleep problem is affecting your sleep. Try these tips and record your sleep and sleep­related activities in a sleep diary.

A. Exercise at the right time.

B. Change your sleeping position.

C. Keep your room dark and cool.

D. Choose a time when you normally feel tired.

E. You may even have a television in your bedroom.

F. If problems continue, discuss the sleep diary with your doctor.

G. Sleeping well is important for keeping our mind and body healthy.