People who have lost the ability to understand or use words due to brain damage are called aphasics（失语症患者）.Such patients can be extremely good at something else.From the changing expressions on speakers' faces and the tones of their voices,they can tell lies from truths.

    Doctors studying the human brain have given a number of examples of this amazing power of aphasics.Some have even compared this power to that of a dog with an ability to find out the drugs hidden in the baggage.

    Recently,scientists carried out tests to see if all that was said about aphasics was true.They studied a mixed group of people.Some were normal;others were aphasics.It was proved that the aphasics were far ahead of the normal people in recognizing false speeches—in most cases,the normal people were fooled by words,but the aphasics were not.

    Some years ago,Dr.Oliver Sacks wrote in his book about his experiences with aphasics.He mentioned a particular case in a hospital.Some aphasics were watching the president giving a speech on TV.Since the president had been an actor earlier,making a good speech was no problem for him.He was trying to put his feelings into every word of his speech.

    But his way of speaking had the opposite effect on the patients.They didn't seem to believe him.Instead,they burst into laughter.The aphasics knew that the president did not mean a word of what he was saying.He was lying!

    Many doctors see aphasics as people who are not completely normal because they lack the ability to understand words.However,according to Dr.Sacks,they are more gifted than normal people.Normal people may get carried away by words.Aphasics seem to understand human expressions better,though they cannot understand words.

    My parents grew up during the Depression(大萧条) attending small country churches. At the close of Christmas Eve services, each child was given a brown paper bag containing an apple, an orange, nuts and several chocolates.

Years later, whenever Dad recalled that tradition, his eyes shone reliving the memory. My mother didn't share his enthusiasm. She always said the chocolates tasted cheap and old.

    Cheap chocolates or not, the paper bags with goodies were an event. Gifts of any sort during the Depression were rare, especially in large farm families with seven children.

    When our children were young and we were home for Christmas one year, Mom and Dad gave each of the grandkids a brown paper bag holding an apple, an orange, nuts and several chocolates. When we finished the 8-hour drive home after the holiday, there was a message waiting on the phone when we walked in the door. “Your ungrateful kids left their apples and oranges in the back of our refrigerator. No more fruit for them!” Grandpa and Grandma were joking, of course, but still there was a degree of disrespect in the kids leaving behind thoughtfully chosen gifts.

    But the paper bag didn't have a context for our children. They had never known fruit to be a scarcity(缺乏). They didn't appreciate the gift because they had never experienced the need the gift was meant to fill.

    The same is true of Christmas today. We don't appreciate the true gift of the season because we don't understand the need the gift was given to fill.

It's not like we don't know we have needs. We know them, all right—patience, love, self-control, strength, courage, faithfulness, forgiveness—it's just that we have become experts at numbing(使麻木) ourselves to our needs.

    The true gift of the season is a perfect fit for our every need. When a gift like apples and oranges fits a need, there is a cheerful satisfaction. When the gift of a Christmas tree fits a need, there is the joy of Christmas.

    Whenever we see a button, we are eager to press it because we know something will happen. This is true in most cases, for example on a doorbell and on the “on/off” button on the TV. But some buttons are actually fake, like the “close” button on a lift.

    Many people are in the habit of pressing the “close” button because they don't have the patience to wait for the lift doors to shut. But lifts' “close” buttons are a complete scam(骗局), at least in the US-the doors will not close any faster no matter how hard you press.

    It started in the 1990s when the Americans with Disabilities Act was passed in the US, making sure that all lifts stayed open long enough so that people with disabilities could enter. Only US firefighters and repairmen can use the buttons to speed up the door-closing process if they have a code or special keys.

    But to normal lift riders, the buttons aren't completely useless. According to psychologists, fake buttons can actually make you feel better by offering you a sense of control.

    “Perceived (能够感知的)control is very important. It reduces stress and increases well-being,” Ellen J. Langer, a psychology professor, said, “having a lack of control is associated with depression.”

    Experts have revealed that a lot of buttons that don't do anything exist in our lives for this same purpose. For example, many offices in the US have fake thermostats(温度调节器) because people tend to feel better when they think they can control the temperature in their workspace.

    But psychologists found it interesting that even when people are aware of these little “white lies”, they still continue to push fake buttons because as long as the doors eventually close, it is considered to be worth the effort.

    “That habit is here to stay,” John Kounios, a psychology professor, said“Even though I have real doubts about the traffic light buttons, I always press them. After all, I've got nothing else to do while waiting. So why not press the button in the hope that this one will work?”

    With golden sunshine and a gentle breeze（微风）, autumn is the most beautiful seasons in the year. This is a great time to go outside and have fun. Go to a valley to see red maple trees, go and pick fruit in an orchard or find an open field to fly your kite in.

    However, for many high school students, these great activities may be just a dream. With plenty of work to do, they spend all their hours indoors, struggling for a high mark in their exams. Of course, study is one of the most important things for teenagers. But life is definitely much more than that.

    Sometimes we spend so much time studying that we forget how to make life wonderful. In doing so, we lose the real purpose of life —to be a valuable and happy person. To enjoy just how great it is to be alive, we have to put down our books and pens and look around us. Students, take some exercise to improve your health, talk with your parents and friends for understanding and walk around outside to refresh（振作）our body and mind.

    Going out and enjoying the beautiful countryside often helps our creativity in our work. Chinese craftsman, Lu Ban created a saw to help woodworkers. But if he hadn't walked outside, he would not have been inspired by a kind of toothed（锯齿状的）grass. We could also suppose if Newton hadn't rested under that apple tree, then he wouldn't have been hit by an apple, and his classic（经典的）theories would not have come out.

    Going out is not only a break from hard work, but a chance to add to life experience. So come on, give your brain a good rest. Step out of the books and get your bag ready for an autumn outing. We are sure you will get much more than knowledge from the exciting journey.

    Darwin noted that some human emotional expressions might have started as part of a physiological function: for example, exposing the teeth to bite food. The function, however, took on meaning and became a form of communication which signals anger.

    The same may be true for the animals. Baby monkeys cry for attention. They also cry to signal to an adult that they want to be carried.

    "Chimpanzees do make upset voice when they are being weaned (断奶) by their mothers or have lost their mothers or another individual, " says Anne Pusey, a professor at the University of Minnesota. "They whimper (呜咽) and cry and scream. When we hear these calls, the emotion involved seems obvious. However, they do not weep in the sense of producing tears. "

    The Iowan researchers can cause the same crying sounds by producing large decreases and then increases in blood flow. The blood flow also goes down when baby rats get cold. Thus, they conclude baby rats cry in the same way that we sneeze. Of course the rat baby could be crying because he's cold and wants his mother to know.

    Being forgiving to yourself and others can protect against stress and the harm it does to mental health, according to a new study in the Journal of Health Psychology.

    Researchers looked at the effects of lifetime stress on a person's mental health, and how more forgiving people got along compared with people who weren't so forgiving. To do this, they asked 148 young adults to fill out questionnaires that assessed their levels of lifetime stress, their tendency to forgive and their mental and physical health.

    No surprise, people with greater exposure to stress had worse mental and physical health. But the researchers also discovered that if people were highly forgiving of both themselves and others, that characteristic alone almost removed the connection between stress and mental illness.

    "It's almost entirely erased—it's zero," says study author Toussaint. "If you don't have forgiving tendencies, you feel the immediate effects of stress in a severe way. You don't have anything to cushion you against that stress."

    How a forgiving personality protects a person from the influence of severe stress is hard to determine. The researchers infer that people who are more forgiving may adopt better skills to deal with stress, or their reaction to major stressors(压力源)may be slow.

    Though more research is needed to fully understand the benefits of being more forgiving, Toussaint believes"100％"that forgiveness can be learned. His own previous research has shown that saying a short prayer on forgiveness can help people take the edge off. "I think most people want to feel good and forgiveness offers you the opportunity to do that," he says.