Recently my husband had his Achilles tendon（跟腱） cut when feeding a chicken. When sitting in the doctor's office waiting for surgery stressfully, I decided to treat myself for a minute and start to read about “The Little House on the Prairie”. Suddenly I felt my life seemed like a slack（懈怠） compared to the Ingalls who do all their washing and cooking but they feel so happy. Their every happiness is created from the work with their own hands. Yet I'm walking around feeling sorry for myself because I'm picking up the slack! So I'm thinking “Work it out! Get up and get busy.”

    It really is true. I realize that I'm happiest when accomplishing tangible(有形的) productive work—working in the yard and washing my dishes—brings me happiness. This does not surprise Kelly Lambert Ph.D. She has been researching the phenomenon she calls “effort-rewards”. When you do meaningful work with your hands, a kind of neurochemical feedback floods your brain with dopamine and serotonin. These happy brain chemicals are natural antidepressants, and we've evolved to release them both to reward ourselves for working with our hands and to motivate ourselves to do it some more. Dr. Lambert says Americans have become more depressed in recent years and at the same time we've experienced a decrease in purposeful physical activity. Did we lose something vital to our mental health when we started pushing buttons instead of ploughing the fields?

    Dr. Pansinski says she gets that happy look when she prepares a meal at the end of a day. “We are programmed to reward ourselves when we accomplish things with our hands. For so many people, it just feels as though everything's going so fast—life, kids, hundreds of e-mails a day. There is so little you can really see and hold on to. Working with one's hands is a way to slow down, to take pleasure in life again.”

    CHICAGO(Reuters)－Smoking not only can wrinkle (皱纹) the face and turn it yellow—it can do the same to the whole body, researchers reported on Monday.

    The study, published in the Archives of Dermatology, shows that smoking affects the skin all over the body－even skin protected from the sun.

    "We examined non-facial skin that was protected from the sun, and found that the total number of packs of cigarette smoked per day and the total years a person has smoked were linked with the amount of skin damage a person experienced," Dr. Yolanda, who led the study, said in a statement.

    "In participants older than 65 years, smokers had significantly more wrinkling than nonsmokers. Similar findings were seen in participants aged 45 to 65 years." Yolanda's team added in their report.

    The researchers tested 82 people, smokers and nonsmokers, taking pictures of the inner right arms. They ranged, in age from 22 to 91 and half were smokers. Independent judges decided how wrinkled each person's skin was.

    When skin is exposed to sunlight, especially the face, it becomes coarse(粗糙的), wrinkled and discolored with a pale yellow color, Yolanda's team wrote.

    Several previous studies have found that cigarette smoking led to premature(过早的)skin aging as measured by facial wrinkles, the study said, but little has been done to measure the aging of skin not exposed to light.

    The previous research has found that cigarette smoke, among other things, causes blood vessels(血管)beneath the skin to constrict(紧缩), reducing blood supply to the skin.

    Smoking can also damage the connective tissue(组织)that supports both die skin and the internal organs (器官).

    Brian Greene, a professor of physics and mathematics at Columbia University, has created an online science education platform. He tries to "build a bridge" with things you know about, and then "bring you across that bridge to the strange place of modern physics."

    Recently I had a chance to ask Greene about wormholes (a hole which some scientists think might exist, connecting parts of space and time that are not usually connected), time travel and other mysteries of the universe. I asked him a million-dollar question: What if I went through a wormhole and prevented my parents from meeting? "Most of us believe that the universe makes sense," Greene said. Although there are several interesting theories about time travel, he added, the laws of physics would probably prevent something so illogical from taking place. The good news is that the time paradox（悖论） is open for future physicists to solve.

    When asked how physics could become more exciting for kids, Greene said that books by Stephen Weinberg, Leonard Susskind, and other physicists, "make it a great time for people who want to learn about big ideas but aren't yet ready, perhaps, to learn math."

    When I pointed out that some students still might find physics boring, Greene said that the key is to teach them about things that are strange. "The basic stuff is important," Greene said. "But I think it's really important to also describe the more modern ideas, things like black holes and the Big Bang. If kids have those ideas in mind, then at least some of them will be excited to learn all the details．"

    Greene has followed Albert Einstein's lead in trying to solve the mysteries of the universe. Now he wants kids to do the same. As Greene said, physics is "not just a matter of solving problems in an exam." It's about experimenting, showing an interest in strange phenomena（现象）-- and having fun!

    Last April, on a Sunday, we took one of our “nowhere” drives. My husband was quietly driving along a back road. I was occupied in the front passenger seat watching the scenery.

    I noticed out of the corner of my eye that my husband was struggling to look out of my window. This frightened me, since his eyes should be on the road in front of him. I asked him what he was looking at out of the windows, and he quietly replied, “Nothing.”

    After a few minutes, I looked over at my husband and noticed a tear running down his cheek. I asked him what was wrong. This time he told me, “I was just thinking about Pop and a story he had once told.” It had something to do with Pop, his friend from childhood, and I wanted to know the story, so I asked him to share it with me.

    He said, “When I was about 8 years old, Pop and I were out fishing and he told me that the pine trees know when it is Easter.”

    I had no idea what he meant by that, so I pressed him for more information.

    He continued on… “The pine trees start their new growth in the weeks before Easter because spring is drawing near. If you look at the tops of the pine trees, you will see the yellow shoots(嫩芽). As the days get closer to Easter Sunday, the tallest shoot will branch off and form a cross. By the time Easter Sunday comes around, you will see that most of the pine trees will have small yellow crosses on all of the tallest shoots.”

    I turned to look out of the window and I couldn't believe my eyes. It was a week before Easter, and you could see all of the trees with the tall yellow shoots stretching to the sky.

    The tallest ones shone in the sunlight like rows of tiny golden crosses. May you find your Easter season filled with beautiful golden crosses!

    If you think can-do, and you're creative and persistent, it's amazing what you can accomplish. During college, I remember being told that to fulfill my language requirement, I would "have to" take a class that I had no interest in and was meaningless to me. Instead of taking this class, however, I decided to create my own. So I put together a list of books I would read and the assignments I would do and found a teacher to sponsor me. I then went to the dean of the school and presented my case. He bought into my idea and I completed my language requirement by taking my self-built course.

    American aviator Elinor Smith once said, "It has long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things."

    It's so true. To reach your goals in life, you must seize the initiative. If you're feeling bad about not being asked out on dates, don't just sit around and sulk, do something about it. Find ways to meet people. Be friendly and try smiling a lot. Ask them out. They may not know how great you are.

    Don't wait for that perfect job to fall in your lap, go after it. Send out your resume, network, volunteer to work for free.

    If you're at a store and need assistance, don't wait for the salesperson to find you, you find them.

    Some people mistake can-do for being pushy, aggressive, or obnoxious. Wrong. Can-do is courageous, persistent, and smart. Others think can-do people stretch the rules and make their own laws. Not so. Can-do thinkers are creative, enterprising, and extremely resourceful.

    George Bernard Shaw, the English playwright, knew all about can-do. Listen to how he said it: "People are always blaming their circumstances for what they are. I don't believe in circumstances. The people who get on in this world are the people who get up and look for the circumstances they want, and if they can't find them, make them."

Workers are returning to their careers, or starting new ones after age 65.

More than ever, work is where many of us get our sense of purpose. That doesn't end at age 65. After being retired for only three months, Sue Ellen King returned to work at the University of Florida Health in Jacksonville, Florida, where she had been a care nurse and nursing educator for 38 years. She is now working part-time in a position created just for her. "It's perfect," she told The New York Times. "I get the satisfaction of having people appreciate what I do." With the average lifespan for those who reach age 64 now getting all the way to 84 years old, those who reach retirement age still have many potential years of work to go.

Job sites connected toward part-timers, temporary positions, and some can also turn up opportunities that may lead to longer-term work. Fred Dodd tried a part-time job after his unemployment as a clerk for large banks at age 63. He'd thought about retiring then. "But part of me just wanted to keep working partly for the money, but more just because I felt I wanted to do more in my career, " he said.

The retired have the advantage of not needing to focus on the earnings potential of whatever jobs they take on, so these older workers are attracted to more meaningful work. And since they are voluntarily putting their skills and experience to good use, they may well have more flexibility than mid-career people. Two-thirds of retirees who'd come back to the work world were doing meaningful work they enjoyed. Legal work and community service were popular choices, as was teaching—all areas in which older workers might have an opportunity to make their own schedules.

Earning more money rarely seems like a bad idea, but it can cause issues for retirees, including effects when they claim Social Security (申请社会保障) benefits early.