Is pricing a plane ticket based on the passenger's weight fair? If you're taking an international flight on Samoa Air today, your fare will be based on your weight, along with that of your luggage. The cost is 93 cents to $1.06 for each kilogram.

    The average American woman weighs 75.5 kilograms, far from the ideal weight for her average height. Her ticket on Samoa Air, at the $1 a kilogram rate, would cost $75.50. But let's be honest here. Since the average American woman is overweight, the ticket will cost her more.

    Samoa Air Chief Executive Chris Langton said, “Planes are run by weight and not by seat. The plane can only carry a certain amount of weight and that weight needs to be paid.”He believes other airlines should adopt the policy.

    It' s not a new idea. I remember a newspaper columnist years ago who put forth the idea that the heavier among us should pay more for their seats on planes, trains and buses. Who hasn' t been squeezed into a middle seat between two plus-sized folks on a flight? It's happened to me; one time my married seatmates had purposefully chosen their seats to have more space until a sold-out flight put me between them. Not one of my better flying experiences.

What if such a policy is adopted by some airlines in the United States? Could such pricing provide a much-needed motivation for Americans to reduce body weight? I hope so. But, as we know, more than one-third of us are obese and another third are overweight. The high probability is that the heavy customers will not suddenly lose weight or stop flying, but will instead choose a different airline, simply moving the supposed problem elsewhere.

    There's no doubt that the heavier will suffer more discrimination (歧视). Discrimination against the overweight in the United States has increased by 66 percent over the last decade —“and is comparable to rates of racial discrimination, especially among women,”wrote Yale University researcher Rebecca M. Puhl. Your weight can affect your salary, your chances for employment, how others view you and even, now, your air fares.

     “If the policy succeeds it may encourage the spread of body discrimination across different industries and the wider culture,” said one British editorial writer. He holds that it is companies' duty to provide equipment that meet the needs of their customers.

And we'll see how effective it is as a business model.

    A complaint was received by the president of a major car company:“This is the fourth time I have written to you , and I don't blame you for not answering me because must sound crazy, but it is a fact that we have a tradition in our family of having ice-cream for dessert after dinner each night. Every night after we've eaten, the family votes on which flavor(味道)of ice-cream we should have and I drive down to the store to get it. I recently purchased a new Pantsmobile from your company and since then my trips to the store have created a problem. You see, every time I buy vanilla(香草)ice-cream my car won't start. If I get any other kind of ice-cream, the car starts just fine. I want you to t now I'm serious about this question , no matter how silly it sounds: What is there about a Pantsmobile that makes it not start when I get vanilla ice-cream, and easy to start whenever I get any other kind?'

    The Pantsmobile company president understandably doubted about the letter, but he sent an engineer there anyway. The engineer had arranged to meet the man just after dinner time, so the two got into the car and drove to the grocery store. The man bought vanilla ice-cream that night and sure enough, after they came back to the car it wouldn't start for several minutes. The engineer returned for three more nights. The first night, the man got chocolate. The car started right away. The second night, he got strawberry and again the car started right up. The third night he bought vanilla and the car failed to start.

    There must be a reason why the man's car wouldn't start when he bought vanilla ice-cream. What was it? After doing more research into the case, the engineer eventually found out. The cause. Vanilla ice-cream was the most popular flavor and was on display in a little case near the express check out, while the other flavors were in the back of the store and took more time to choose and check out. This mattered because the man's car was experiencing vapor(蒸汽) lock, which is excess(过度的)heat boiling the fuel in the fuel line and the resulting air bubbles (气泡) blocking the flow of fuel until the car has enough time to cool. When the car was running, there was enough pressure to move the bubbles along, but not when the car was trying to start.

    Smoking is harmful. But as soon as you quit the habit, everything will be OK, right?

    Wrong

    New research has found that even if you give up smoking, the damage it has done to your genes(基因) will stay there for a much longer time. In the research, a team of US scientists studied the blood of 16,000 people. Among them, some were smokers, some used to smoke, and the rest were non-smokers. Scientists compared their genes and found that more than 7,000 genes of smokers had changed—a number that is one-third of known human genes.

    According to NBC News, both heart disease and cancer are caused by genetic changes. Some people may have had the changes when they were born, but most people get them in their day-to-day lives while doing things like smoking.

    When you stop smoking, a lot of these genes will return to normal within five years.

    This means your body is trying to heal (治愈) itself of the harmful effects of smoking. But the changes in some of the genes stay for longer. They can stay for as long as 30 years. It's almost like leaving a footprint on wet cement (水泥)—it will always be there, even when you've walked away and when the cement becomes dry.

    Although the study results may make people unhappy, there is a bright side: the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer risks.

    Are you sick of going to bed late and waking up tired? Then grab your hiking boots and a tent. A new study suggests that camping in the great outdoors for a couple of days can reset your body clock and help you get more sleep.

    The body clock is an internal system that tells our bodies when it's time to go to sleep and when it's time to wake up. Scientists track this clock by measuring the amount of melatonin (褪黑激素) circulating in a person's blood at any given time.

    In a healthy sleeper, melatonin levels rise a few hours before bedtime, stay high through the night, and then settle back down when it's time to wake up.

    In our modern society, however, most of us stay up many hours past sunset and would probably sleep in many hours after sunrise if we could. And the trouble is, your melatonin levels may still be high when your alarm clock goes off in the morning, which leads to fatigue. It may also have other health consequences as well, such as diabetes (糖尿病), overweight and heart disease.

    Professor Kenneth Wright of the University of Colorado in the US wanted to see if our body clocks can be reset by a short stay in nature. His team recruited (招募) fourteen physically active volunteers in their 20s and 30s. Nine went on a weekend camping trip, while the other five stayed home. At the end of the weekend, the researchers reported that in just two days, the campers' body clocks had shifted so that their melatonin levels began to rise more than an hour earlier than they did before they left on the trip. By contrast, the body clocks of the group that stayed home shifted even later over the course of the weekend.

    “This tells us we can reset our clocks fast,” Wright said.

    Therefore, if you want to change your sleep patterns you could try to increase your exposure to natural light during the day and decrease the amount of artificial light you see at night. And if that doesn't work，there's always camping.

Hot Spots for Retirees to Start Their Encore Career

    Encore Career: Vocational School Instructor

    Retire in: Los Angeles, CA

    Ever since IBM CEO Ginni Rometty coined the term "new collar" to describe well-paid jobs that require specific skills but not necessarily a degree, vocational schools have made a serious comeback. Apparently instructors are in short supply in sunny L.A., where there are 13 jobs at vocational schools for every applicant on the market. This is a great opportunity for skilled retirees since, unlike teaching at a public school that requires a state certificate, the only requirement here is that you be a seasoned expert in your field.

    Encore Career: Business Consultant

    Retire in: Miami, FL

    Consulting is a great option for a retired business professional looking to make their own hours, be their own boss, and earn as much or as little as needed to maintain their standard of living. For every consultant in Miami right now there are 13 businesses hoping to hire them. There's even greater demand here than in Washington D.C., which is typically considered the consulting capital of the world.

    Encore Career: Tourist Wrangler

    Retire in: Austin, TX

    As the economy continues to boom and more Americans have extra income to spend, the tourism industry has taken off. This is particularly true in Austin, TX, where there were astonishing 36 tourism jobs for every applicant in July. Between four-star hotels, the noisy rock n' roll scene, and a new food culture, Austin is the place to be if you want to work in service industry.

    Encore Career: Supporter of the Arts

    Retire in: Charleston, SC

    If you're a Baby Boomer with a degree in the arts, now could be the perfect time to revisit your passion for creativity, especially if you also want to live in the center of southern charm. Between the 14 art galleries on King Street in Old Town, an abundance of acting companies and theaters, and music festivals, it's not surprising there were 25 jobs for every arty applicant iii Charleston.

    I have a special place in my heart for libraries. I have for as long as I can remember. I was always an enthusiastic reader, sometimes reading up to three books a day as a child. Stories were like air to me and while other kids played ball or went to parties, I lived out adventures through the books I checked out from the library.

    My first job was working at the Ukiah Library when I was 16 years old .It was a dream job and I did everything from shelving books to reading to the children for story time.

    As I grew older and became a mother, the library took on a new place and an added meaning in my life. I had several children and books were our main source(来源) of entertainment. It was a big deal for us to load up and go to the local library, where my kids could pick out books to read or books they wanted me to read to them.

    I always read ,using different voices ,as though I were acting out the stories with my voice and they loved it !It was a special time to bond with my children and it filled them with the wonderment of books .

    Now, I see my children taking their children to the library and I love that the excitement of going to the library lives on form generation to generation.

    As a novelist, I've found a new relationship with libraries. I encourage readers to go to their local library when they can't afford to purchase a book. I see libraries as a safe haven(避风港) for readers and writers, a bridge that helps put together a reader with a book. Libraries, in their own way, help fight book piracy(盗版行为) and 1 think all writers should support libraries in a significant way when they can. Encourage readers to use the library. Share library announcements on your social media. Frequent them and talk about them when you can.