Since memory plays a significant role in our life, scrientists are increasingly interested in research on how to improver memory, Here are some factors they believe to be important to expanding memory capacity.

To begin with, you must take special care in your daily life. Food for example, is very important. Some vitamins are essential foe your memory to work properly. They are found in bread, cereal, vegetables and fruits. Some experts say that synthesizes vitamins improve memory, but others have doubts about this, arguing that the studies have not confirmed they do work. Another essential factor is water. It helps to maintain the memory systems, especially in older persons. According to Dr. Roswell, lack of water in the body has an immediate and strong effect on memory; it can cause confusion and other thought difficulties. Sleep also plays a significant role. To be able to have a goof memory, we must allow the brain to have plenty of rest. While sleeping, the brain no longer controls the senses, and starts to revise and store the information one has receives. Lack of sleep would make one feel exhausted and would weaken one’s ability to concentrate. Also, one’ ability to store information would be affected.

1. What is the passage mainly about?

2. Why are foods important in promoting memory according to the passage?

3. To whom is water especially important in maintaining the memory system?

4. What problem can a lack of water cause?

5. Why is sleep important to memory?

Keys: 1.A 2.B 3.D 4.D 5.C