There was good news last week for people who struggle to get eight hours of sleep a night: they may not need so much shut-eye after all.

    Researchers from UCLA and elsewhere looked at sleep habits of remote hunter-gatherers in Tanzania, Namibia and Bolivia — groups with pre-industrial lifestyles whose sleep patterns are believed to reflect those of ancient humans. The researchers found that, on average, members of each group sleep a bit less than six and a half hours a night.

    The study, published in the academic journal Current Biology, indicates that “natural” sleep is less than eight hours a night and that modern society's numerous electronic distractions (分心) aren't necessarily to blame for people getting just six or seven hours of sleep.

    “The story that often gets out is that if you sleep for less than seven hours, you're going to die early,” he told me. “That's not true.”

    Yet Americans are addicted to getting more sleep — and on turning to medical shortcuts to help them.

    According to the Centers for Disease Control, as many as 70 million U.S. adults suffer from sleep disorders or sleeplessness. Only a third of Americans get the government's recommended seven to nine hours of sleep a night.

    About 9 million American adults use sleeping pills to help get a good night's rest, the CDC found. Siegel said the number of people relying on medicines “has gone up rather rapidly since then.”

    Industry consulting firm Global Data estimates that worldwide sales for sleeplessness medicines will run about $1.4 billion next year and reach $1.8 billion by 2023, recovering from lower sales in recent years because of cheaper generics(仿制药) hitting the market.

    Dr. Roy Artal, a sleep specialist in West Los Angeles, said it's understandable that busy people in today's go-go world would turn to medicines to speed up the sleep process. But all they're doing is building a reliance on powerful drugs for relatively little improvement.

    “There's no magic pill that makes us sleep when we want and wake up when we want,” Artal said. “The effects of sleeping pills tend to be modest.”

    He and other experts say the answer to sleeplessness isn't to be found in a pill bottle. It's in what's called “sleep hygiene (保健).”

    One morning, Ann's neighbor Tracy found a lost dog wandering around the local elementary school. She asked Ann if she could keep an eye on the dog. Ann said that she could watch it only for the day.

    Tracy took photos of the dog and printed off 400 FOUND fliers（传单）, and put them in mailboxes. Meanwhile, Ann went to the dollar store and bought some pet supplies, warning her two sons not to fall in love with the dog. At the time, Ann's son Thomas was 10 years old, and Jack, who was recovering from a heart operation, was 21 years old.

    Four days later Ann was still looking after the dog, whom they had started to call Riley. When she arrived home from work, the dog threw itself against the screen door and barked madly at her. As soon as she opened the door, Riley dashed into the boys' room where Ann found Jack suffering from a heart attack. Riley ran over to Jack, but as soon as Ann bent over to help him the dog went silent.

     “If it hadn't come to get me, the doctor said Jack would have died,” Ann reported to a local newspaper. At this point, no one had called to claim the dog, so Ann decided to keep it.

    The next morning Tracy got a call. A man named Peter recognized his lost dog and called the number on the flier. Tracy started crying, and told him, “That dog saved my friend's son.”

    Peter drove to Ann's house to pick up his dog, and saw Thomas and Jack crying in the window. After a few moments Peter said, “Maybe Odie was supposed to find you, maybe you should keep it.”

♦ Conaught Rd. West, Sheung Wan, Hong Kong Island

About the flat share

    Who lives there

    3 females, from 13 to 40 years old

    Description,

    880 sq. ft. Sea view Balcony with one bedroom &1 toilet for rent. Good for Kids to play around or dog feeding area. No short term lease and no commission(佣金). For more information, please contact Mr. Wrong on whats App.

     Room for rent Wan Chai

    About the flat share

    Who lives there

    2 adults and 2 kids

    Description

    Room for rent is available in heart of Wan Chai with families of 4 and we are looking for female students/ tourists. For more information, please kindly contact Mr. Li on what's App... thank you!

     U Lam Terrace, Midleverls Central, Hong Kong Island

    About the flat share

    Who lives there

    3 mixed gender, from 20 to 30 years old

    Description

    The flat is 5 minutes from SOHO (small office/ home office) and 2 minutes from Sheung Wan café area. The area is super quiet and convenient. There is a supermarket within 3-5 minutes' walk.

Reasonable price of 9,500 HKD per month.

     Bright Room in Share Flat near Time Square in Causeway Bay

    About the flat share

    Who lives there

    1 male, 21 years old, professional, nonsmoker

    Description

    A room in a share flat, near Time Square in Causeway Bay, available on 28 April. 5,500 HKD per month all bills inclusive, including water, electricity, WiFi Internet and cleaning service twice a week.

    Arriving in Sydney on his own from India, my husband, Rashid, stayed in a hotel for a short time while looking for a house for me and our children.

    During the first week of his stay, he went out one day to do some shopping. He came back in the late afternoon to discover that his suitcase was gone. He was extremely worried as the suitcase had all his important papers, including his passport.

    He reported the case to the police and then sat there, lost and lonely in strange city, thinking of the terrible troubles of getting all the paperwork organized again from a distant country while trying to settle down in a new one.

    Late in the evening, the phone rang. It was a stranger. He was trying to pronounce my husband's name and was asking him a lot of questions. Then he said they had found a pile of papers in their trash can(垃圾桶)that had been left out on the footpath.

    My husband rushed to their home to find a kind family holding all his papers and documents. Their young daughter had gone to the trash can and found a pile of unfamiliar papers. Her parents had carefully sorted them out, although they had found mainly foreign addresses on most of the documents. At last they had seen a half-written letter in the pile in which my husband had given his new telephone number to a friend.

    That family not only restored the important documents to us that day but also restored our faith and trust in people. We still remember their kindness and often send a warm wish their way.

Gene technology to benefit people

    Among all the fast growing science and technology, the research of human genes, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic discussed by people.

    The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life span(寿命) can be prolonged.

    Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial(皇室) family being a good example, have hereditary(遗传的) diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases. But gene technology can solve this problem perfectly. The scientist just need to find the wrong gene and correct it and a healthy child will be born.

    Some people are worrying that the gene research can be used to manufacture human beings in large quantities. In the past few years, scientists have succeeded in cloning a sheep; therefore these people predict that human babies would soon be cloned. But I believe cloned babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the governments must take care to control gene technology.

What makes preschoolers eat their vegetables? Raise their hand? Wait their turn? "Because I say so" is a comment that parents often repeat. But when it comes to getting kids to behave, a recent study by Duke University researchers suggests that the voice of adult authority isn't the only thing that matters. Around age three, fitting in with the group starts to count big too.

To understand what cause preschoolers to fall    in    line, the researchers conducted a test in a lab, where they invited 3.5-year-olds to help set up for a pretend tea party. Each of the 104 children was given a blue sticker (贴纸) to wear at the start of the study, and told that the people with that color sticker were part of the same team. Next the researchers watched as the children decided among different kinds of teas, snacks, cups and plates for the tea party, first on their own and then after listening to the choices of other team members.

Sometimes the other team members considered their choice as a matter of personal preference ("For my tea party today, I feel like using this snack.") Other times they presented it as a need shared by the whole group. ("For our tea parties today, we always use this kind of snack.")

After listening to the choices of others, most of the time the children stuck with their first choice. In other words, children who had said they felt like using, say, the cookie finally picked the cookie no matter what the other person said they were using. But 23% of the time the children changed their choice to accept someone else's. And when they did, they were more likely to go along with the other person when a choice was presented as a group need rather than just a personal preference. The finding held up even when the other person was another child, not an adult.