The last time I visited my eighty­three­year­old mother­in­law, I asked how she was feeling. It's a valid question. She has, after all, had two knee replacements and a liver transplant. She moves slowly to avoid another fall.

    But she hasn't stopped moving. She and my father­in­law attended their first Jimmy Buffet concert this summer. Here's the thing about my in­laws: They never say no to an invitation or a new adventure. If they can make it work, they're willing to try just about anything. When we need them to come to stay with the kids, we have to get on their calendars far in advance.

When asked how she was feeling, my motherinlaw responded, "Well, everything hurts every day. But you know what I've discovered? It doesn't hurt to smile. So that's what I've decided to do... smile at everyone I see. I may not be able to do all the things I used to do, but I can at least brighten someone's day."

    It is such simple wisdom. Moving the focus from what we don't have and from what we've lost to what we can offer others is the difference between living in the dark and radiating light. They inspire us daily.

    The key to a life worth living, I think, is to change our views. You don't have to make great changes. Sometimes change looks similar to everyday kindness. Sometimes change begins with holding the door for a mother with an armful of groceries.

    In theory, the butterfly effect says that the smallest breeze(微风) from a butterfly's wing can change the path of a hurricane halfway. Imagine, then, the possibilities that exist within a single smile.

    10 years after my parents got married, my dad went to work in the oil fields, and soon accepted a job working overseas. The money was great, but the fact that we only saw him every other month disappointed me. My mom stayed home with her five children, raising us alone. We had a place in the country with horses, dogs, chickens and a few head of cattle. Mom was very busy, but always made time for us. Of course, lots of mothers did things like that. But Mom's greatest achievement was yet to come.

    When the oil business declined(衰退) in the 1980s, my dad and most of his friends lost their jobs. The wives were at a loss to know how to manage without large monthly paychecks. But my mom was different. She helped out by working part-time jobs and she learned to drive a semi-truck, so she could help my dad make more miles at his new job. But with three teenagers at home, she couldn't spend time on the road with him, so he decided to find a different kind of job.

    Mom found an ad for the International Air Academy in Vancouver, Washington. She had always dreamed of working as a flight attendant but had chosen a family over a career. She was fascinated by the idea that she might be able to work in the travel field after all. Having no idea how she would pay for the schooling, or even if she'd get a job, she took a leap of faith(冒险一试) and dialed the number.

    It wasn't easy, but she passed the entrance exam and was admitted to the three-month training course. That was only half the battle, though, as she still needed the tuition. She finally got a loan( 借款) to cover some of the expenses, and the president of the school gave her a personal loan to cover the rest.

    As she read her welcome packet, she realized there was a strict dress code( 着装要求), requiring professional dress each day. This was not something she had. And she also needed to see an eye doctor. Her older brother sent her enough money to buy the clothes she needed and test her eyes. And then she took her two youngest － daughters my sister and me to Vancouver, where there was an apartment waiting for her in the family housing section.

    In the first day of class, she was so nervous. I can remember her taking deep breaths and trying to calm herself before leaving. She was forty-five years old, and that made it a little intimidating to walk into a classroom full of twenty-year-olds and try to hold her own. But she stood by her commitment and graduated at the top of her class.

    Her first job as a travel agent was with a large agency in Aurora, Colorado. She felt great about her achievement and proud of the beautiful high-rise building she worked in. I was so proud of what she had done. She'd found a way to rise above the curveball( 弧线球) life had thrown at her. Instead of quitting as many of her friends had, she charged ahead and created a brand new career.

    How many men do housework? Recently a European Commission tried to find out people's ideas and reactions to the women's movement. As part of their survey, they asked many men and women the question, “Who does the housework?” The men answered very differently from the women!

    The housework they asked people about were: preparing meals, washing dishes, cleaning the house and babysitting. 48% of British husbands said they did these things. 37% of Danish men helped in the house. But only 15% of Italian men said they did the housework, many of them said they never helped at all!

    But there was an interesting point of view from the wives. According to British wives, only 38% of their husbands helped in the house. And Italian wives said that their husbands hardly ever helped. The Italian and British men did not tell the truth! The Commission found that Danish men were the most trustful husbands; their answers were the same as their wives' answers.

    Do the men you know help in the house? Do you think the survey gives a true picture in your experience? Write and tell us what you think.

    It's surprising how much simple movements of the body can affect the way we think. Using expansive gestures with open arms makes us feel more powerful, crossing your arms makes you more determined and lying down can bring more insights(领悟).

    So if moving the body can have these effects, what about the clothes we wear? We're all well aware of how dressing up in different ways can make us feel more attractive, sporty or professional, depending on the clothes we wear, but can the clothes actually change cognitive (认知的) performance or is it just a feeling?

    Adam and Galinsky tested the effect of simply wearing a white lab coat on people's powers of attention. The idea is that white coats are associated with scientists, who are in turn thought to have close attention to detail.

    What they found was that people wearing white coats performed better than those who weren't. Indeed, they made only half as many errors as those wearing their own clothes on the Stroop Test (one way of measuring attention). The researchers call the effect “enclothed cognition,” suggesting that all manner of different clothes probably affect our cognition in many different ways.

    This opens the way for all sorts of clothes-based experiments. Is the writer who wears a fedora more creative? Is the psychologist wearing little round glasses and smoking a cigar more insightful? Does a chef's hat make the resultant food taste better?

    From now on I will only be editing articles for PsyBlog while wearing a white coat to help keep the typing error count low. Hopefully you will be doing your part by reading PsyBlog in a cap and gown (学位服).

    "Hope has proved a powerful predictor of outcome in every study we've done so far," said Dr. Snyder, a psychologist.

    In research with 3,920 college students, Dr. Snyder found that the level of hope among freshmen at the beginning of their first term was a more accurate predictor of their college grades than were their S.A.T. scores or their grade point averages in high school. "Students with high hope set themselves higher goals and know how to work to attain them," Dr. Snyder said. "When you compare students with equal learning ability and past school achievements, what sets them apart is hope."

    In seeking a way to assess hope scientifically, Dr. Snyder went beyond the usual belief that hope is merely the sense that everything will turn out all right. "This idea is not concrete enough; it fails to clarify two key components of hope," Dr. Snyder said.

    "Having hope means believing you have both the will and the way to accomplish your goals, whatever they may be."

    Despite the wisdom in the old saying "where there's a will there's a way," Dr. Snyder has found that the two are not necessarily connected. In a study of people from 18 to 70 years old, Dr. Snyder discovered: only about 40% of people are hopeful in the technical sense of believing they typically have the energy and means to accomplish their goals; about 20% of the people believed in their ability to find the means to attain their goals, but said they had little will to do so; another 20% have the opposite pattern, saying they had the energy to motivate themselves but little confidence that they would find the means; the rest had little hope at all, reporting that they typically had neither the will nor the way.

    "It's not enough just to have the wish for something," said Dr. Snyder. "You need the means, too. On the other hand, all the skills to solve a problem won't help without the willpower to do it."

    Russ Gremel, now 98 years old, decided it was time to donate $2 million to the Illinois Audubon Society, a charity to purchase nearly 400 acres of land for wildlife protection. Gremel was able to make this amazing donation because he purchased $1,000 worth of Walgreens stock seven decades ago whose value has grown recently.

    "A single man with no kids, Gremel has lived in the same Chicago house for 95 years, and has always lived simply", neighbor Patrick Falso told TODAY. Falso said he heard Gremel say many times the "money wasn't mine to begin with" and that he always intended to give it away.

    The Gremel Wildlife shelter was founded on June 4. Illinois Audubon Society president Jim Herkert said Gremel's donation was extremely generous. "It's allowing us to protect a really valuable and important possession and realize one of Gremel's wishes that we could find a place where people could come out and experience nature the way he did as a kid," Herkert told TODAY.

    After doing all this, this past weekend, Gremel adopted an old Chihuahua（吉娃娃犬）. Winnie the dog was picked up as a homeless dog several months ago. She suffered from a kind of cancer, which was treated—and all she needed was a loving home, which Colleen Collins, the founder of Perfect Pooches Adoption Agency, was determined to find.

    Gremel had lost his own beloved Chihuahua earlier this year. When he reached out to Collins about Winnie, she felt this could be a good match. That feeling grew when she brought Winnie to his house for a meet and greet, and Winnie was introduced not only to Gremel but also some of his friends and neighbors. One had brought over a lot of fresh strawberries; all said they'd be there to help out in any way needed.