When we can see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we come to see how important our eyes are.

    People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing, reading and sewing（缝纫）, become nearsighted. Then they have to wear glasses in order to see distant things clearly.

    People who are farsighted（远视的）suffer from just the opposite problem. They can see things that are far away, but they have difficulty reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses too.

    Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts（白内障）. Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.

    When night falls, colors become fainter to the eye and finally disappear. After your eyes have grown used to the dark, you can see better if you use the sides of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you, which seems to disappear if you turn you head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they cannot see it any more, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive(敏感的) in daylight, is not as sensitive as the sides of the eyes after dark.

    My husband and I had been married nearly twenty-two years when I acquired Stevens-Johnson syndrome,a disorder where my immune system responded to a virus by producing painful blisters（水疱）.Although my long-term evaluation was good,I,who had been so fiercely independent,rapidly became absolutely helpless.

    My husband,Scott,stepped up to the plate,taking care of kids and cooking dinners.He also became my personal caretaker,applying the medicine to all of my blisters because my hands couldn't do the job.Needless to say,I had negative emotions,bouncing from embarrassment to shame caused by total reliance on someone other than myself.

    At one point when I had mentally and physically hit bottoms I remember thinking that Scott must somehow love me more than I could ever love him.With my illness he had become the stronger one,and I the weaker one.And this disturbed me.

    I recovered from my illness,but I couldn't seem to recover from the thought that I loved my husband less than he loved me.This seeming distinction in our love continued to annoy me for the year following my illness.

    Then recently Scott and I went on a long bike ride.He's an experienced cyclist;I'm quite the green hand.At one point with a strong headwind and sharp pain building in my tired legs,I really thought I couldn't go any further. Seeing me struggle,Scott pulled in front of me and yelled over his shoulder,"Stay close behind me."As I fell into the draft of his six-foot-three-inch frame and followed his steps,I discovered that my legs quit burning and I was able to catch my breath.My husband was pulling me along again.At this very moment I woke up to what I now believe: during these and other tough times,love has the opportunity to become stronger when one partner learns to lean on the other.

    I pray my husband will always be strong and healthy.But if he should ever become the struggling one,whether on a bike ride or with an illness,I trust I'll be ready to call out to him: Stay close behind me—my turn to pull you along.

    As Internet users become more dependent on the Internet to store information, are people remembering less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.

    In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.

    In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder(文件夹). Surprisingly, people later remember the folder location(位置)better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called “transactive memory”.

    According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize large amounts of information so that they are able to find it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.

    I decided to ski to the North Pole. It was after I saw an advertisement in a newspaper looking for people to join a team to ski 350 miles to the North Pole. Back in 1996, there had never been a woman from the UK who had accomplished this challenge. I wondered what it would be like to survive in temperatures cold enough to freeze your flesh in seconds, so I sent off for the application form.

    The application form full of pictures of male explores arrived. The words “Are you man enough for the ultimate(极限的)challenge?” made me angry and even more determined to get on the team.

    Over 500 individuals applied for a place in the team, and the selection process included physical and psychological tests designed to pick the best group. In one test, there was a huge rope ladder we had to climb, and I froze at the top because I have a fear of heights. I thought my hopes were fading as most other applicants sailed past, leaving me behind. But two others helped me over, and later I found out that the organizers were not looking for amazing individuals, but great team players, and this moment had shown them who would take care of others in the team.

    I had revealed(显示)my weakness, and in a place like the Arctic, you have to be yourself, as there is nowhere to hide. These personalities of asking for help and showing weakness are necessary for women to master.

    I realized that by being myself, I could succeed. I was selected for the team. I realized that I could achieve more than I ever imagined — more importantly, by sharing my story with others, I could inspire them to take a step into the new world and reveal more of their abilities.

Lisinopril

    What is lisinopril? Lisinopril is a medicine to treat high blood pressure. This medicine is only available on prescription. It comes as tablets. It also comes as a liquid for people who find it hard to swallow tablets, but this has to be ordered specially by your doctor.

    Important information

    To make sure lisinopril is safe for you, tell your doctor if you have:

    Heart, liver or kidney problems

    Diabetes (糖尿病)

    Higher levels of potassium (钾) in your blood

    Women who are pregnant can't take the medicine. It could harm the unborn baby.

    How should I take lisinopril?

    Take lisinopril exactly as prescribed by your doctor. Follow all directions on your prescription label. Your doctor may sometimes change your dose (剂量) to make sure you get the best results.

    Drink plenty of water each day while you are taking this medicine.

    Lisinopril can be taken with or without food.

    Your blood pressure needs to be checked often, and you may need frequent blood tests.

    What if I forget to take it?

    If you miss a dose of lisinopril, take it as soon as you remember. If you don't remember until the following day, skip the missed dose. Do not take a double dose to make up for a forgotten one. If you forget doses often, it may help to set an alarm to remind you.

    What should I avoid while taking lisinopril?

    Avoid drinking alcohol, because it can further lower your blood pressure and may increase certain side effects of lisinopril.

    Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.