In ancient Egypt, a shopkeeper discovered that he could attract customers to his shop simply by making changes to its environment. Modern businesses have been following his lead, with more tactics(策略).

    One tactic involves where to display the goods. For example, stores place fruits and vegetables in the first section. They know that customers who buy the healthy food first will feel happy so that they will buy more junk food later in their trip. In department stores, the women's shoe section is generally next to the women's cosmetics(化妆品) section: while the shop assistant is going back to find the right size shoe, bored customers are likely to wander over and find some cosmetics they might want to try later.

    Besides, businesses seek to appeal to customers' senses, stores notice that the smell of baked goods encourages shopping, so they make their own bread each morning and then fan the bread smell into the store throughout the day. Music sells goods, too. Researchers in Britain found that when French music was played, sales of French wines went up.

    When it comes to the selling of houses, businesses also use highly rewarding tactics. They find that customers make decisions in the first few seconds upon walking in the door, and turn it into a business opportunity. A California builder designed the structure of its houses smartly. When entering the house, the customer would see the Pacific Ocean through the windows, and then the pool through an open stairway leading to the lower level. The instant view of water on both levels helped sell these $10 million houses.

    It was with heavy hearts that my son and I worked to prepare his car for a milestone journey—the day he moved across the country after twenty years of living under my roof．

    Our work went slowly into the afternoon．The Sunday baseball game came on．Our hometown Cardinals were playing the Atlanta Braves．I overheard bits of the TV broadcast—Atlanta took a two-run lead as we were packing the trunk．After that I became absorbed in glum thoughts about his departure and forgot about the game．Suddenly I heard the door open．“Dad，”he said，“let's watch the game．They're only down by a run．”

    His red-colored eyes instantly told me that he，too，found this to be difficult and wanted to share one last father-son moment．Without hesitation I led the way to the TV set．There，we found the Cards losing 3—1．“Oh，”he said，“they're down two runs．”His voice cracked with doubt．“I thought they were coming back．”“That's fine，”I said，wanting so much to string this moment．“Let's watch anyway．”

    The Cards got to bat last．First a single，and then another．Suddenly the game became very interesting．When David Eckstein parked the third pitch(投球)into the seats，we were transformed，jumping up and down．That's when the magic moment came．The sadness of that day was replaced by the exciting baseball game，something we had done many times together before．

    Then he left．It was a sad day when I helped my son pack and get ready to move away to college．But this moment of joy mixed with sadness made the day，the trip and our life seem so right．

    By trying to tickle(挠痒痒) rats and recording how their nerve cells respond, Shimpei Ishiyama and his adviser are discovering a mystery that has puzzled thinkers since Aristotle expected that humans, given their thin skin and unique ability to laugh, were the only ticklish animals.

    It turns out that Aristotle was wrong. In their study published on Thursday, Ishiyama and his adviser Michael Brecht found that rats squeaked and jumped with pleasure when tickled on their backs and bellies. These signs of joy changed according to their moods. And for the first time, they discovered a special group of nerve cells. These nerve cells made this feeling so powerful that it causes an individual being tickled to lose control.

    To make sure that he had indeed found a place in the brain where tickling was processed, Ishiyama then stimulated that area with electrical currents. The rats began to jump like rabbits and sing like birds.

    “It's truly ground-breaking,” said Jeffrey Burgdorf, a neuroscientist at Northwestern University who reviewed the paper. “It takes the study of emotion to a new level.”

    Burgdorf has played a central role in our understanding of animal tickling. He was part of a team that first noticed, in the late 1990s, that rats made special noises when they were experiencing social pleasure. Others had already noted that rats repeatedly made short and high sounds during meals. But the lab where Burgdorf worked noticed that they emitted similar sounds while playing. And so one day, the senior scientist in the lab said, “Let's go and tickle some rats.” They quickly found that those cries of pleasure doubled.

    “The authors have been very adventurous,” said Daniel O'Connor, a neuroscientist at Johns Hopkins University who studies touch. To him, that finding was very surprising.

    “Why does the world literally feel different when you are stressed out?” he said. “This is the first step towards answering that question. It gives us a way to approach it with experimental rigor(严谨).”

From a young age, Michael Platt loved two things: the Rev. Martin Luther King, Jr. and cupcakes. He imagined ways he too could fight for justice. He memorized figures about income inequality and childhood hunger. But he also spent afternoons at his home computer, amazed by YouTube bakers who made perfect cupcakes.

When his parents gave him a pair of Toms shoes for Christmas three years ago, Michael saw a way to connect his twin passions. At age 11, he founded a bakery that operates on the Toms one-for-one model: For every cupcake, cake or cookie that Michael sells, he donates another to the homeless and hungry. Twice a month, he heads to locations to pass out goodies. Michael, now 13, said he especially enjoys handing out cupcakes to kids.

"I know I like cupcakes, but also cupcakes are part of a child's childhood so they should get them," said Michael, noting that he always eats one with whippedicing (打发的糖霜) on his birthday.

Michael calls his baking business Michaels Desserts. He left out the apostrophe (撇号) as a reminder that he is baking for others, not himself. "I always wanted to have a purpose for what I do." he said. "It's all about helping people— not just having a purpose for yourself, but thinking about, 'How does this touch other things? "

When he started the bakery, he knew that he wanted his business to do more than make money. That's why the intention of Michaels Desserts is fighting hunger and giving back, which Michael accomplishes through his giveaways. Michael hopes his cupcakes inspire others to work for social equality.

Sometimes, Michael admits, he grows tired of being in the kitchen. Then he remembers the homeless boy he met once while handing out cupcakes. A couple of days afterward, the boy's father messaged Michael on Facebook to say that his son, encouraged by Michael's example, now desired to become a baker.

"That inspired me," Michael said. He smiled and looked down.

For some people, walking or running outdoors is a great way to work out. What may not be so pleasant is seeing trash all over the ground. Well, some people are doing something about it. They are plogging!

"Plogging" began in Sweden. The name combines the Swedish word "plocka", which means "to pick up", and the word "jogging", which means "to run slowly". A Swedish man named Erik, started the movement in 2016. On the World Environment Day website, Erik says that he moved to Stockholm from a small community in northern Sweden. Each day he would ride his bike to work. Concerned about the amount of trash and litter he saw each day on his way to work, he took matters into his own hands. 

Plogging, by that term, may have officially begun in Sweden. But many people who exercise outdoors have been doing this for years. Take Jeff Horowitz for example. He is a personal trainer in Washington, D.C. He often picks up trash while running outside. He even has turned it into a game; he will try to pick up the trash without stopping. "I didn't know it was a thing really. This is just my personal ethics____(道德标准), where I go for a run and if I happen to see a piece of garbage lying around and it's within reach—it is a kind of a little test for me to see if I can grab it and throw it in a near trash can without stopping. And that way, I think, it gives me a little exercise and a little focus for my run. And it helps clean up the neighbourhood," he announced. 

Today, plogging is an official activity, one that is becoming increasingly popular. Cities around the world now hold plogging events. "I would just hope people would think twice before dropping garbage on the ground. We have containers on every block. So, it's easy to put your garbage in the trash cans. I just think people should think about it a little bit more. I do hope one day there will not be a need for plogging," said an interviewee. 

"Runners, on your mark, get set…"At the sound of the starting gun, hundreds of young runners 1 on a 1.5-mile course in New York City's rainy Central Park. TheOctober 29 competition was 2 by the New York Road Runners(NYRR). A total of 223athletes between the ages of 12 and 18 3 the finish line.

The Rising NYRR Kids Kickoff invited 4 between the ages of 2 and 18, including competitors in wheelchairs, to take part in a series of 5 . Nearly 1,000 kids signed up to participate. I ran in an untimed race for runners under the age of 12. There also were 6 races for younger players.

The Kickoff was the first event for the NYRR. The group is 7 to get more young people to take part in the sport of running.

After the races, the boring 8 stopped. Players and their families and friends then got a 9 to enjoy music, snacks, and games.

The celebrations marked the 10 of Marathon Week in New York City. The yearly competition, a 11 journey up to 26 miles, took place on November 5. First 12 in1970, the race draws hundreds of thousands of competitors 13 from around the world.

NYRR is a nonprofit(非营利的) 14 that began as a running club in 1956. The group's task is to inspire runners of all abilities to stay 15 and enjoy the sport together.Each year, NYRR hosts about 40 races for adults and 50 races for young people.