An old lady in a plane had a blanket（毯子）over her head and she did not want to take it off. The air hostess spoke to her, but the old lady said, “I have never been in a plane before, and I am frightened. I am going to keep this blanket over my head until we are back on the ground again!”

    Then the captain came. He said, “Madam, I am the captain of this plane. The weather is fine, there are no clouds in the sky, and everything is going very well. ”But she continued to hide.

    So the captain turned and started to go back. Then the old lady looked out from under the blanket with one eye and said, “I am sorry, young man, but I don't like planes and I am never going to fly again. But I'll say one thing, ”She continued kindly, “You and your wife keep your plane very clean!”

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    If you don't have a college degree, you're at greater risk of developing memory problems or even Alzheimer's (老年痴呆). Education plays a key role in lifelong memory performance and risk for mental disorder, and it's well documented that those with a college degree possess a cognitive（认知的） advantage over their less educated counterparts in middle and old age.

    Now, a large national study from Brandeis University published in the American Journal of Geriatric Psychiatry shows that those with less schooling can significantly make up for poorer education by frequently engaging in mental exercises such as word games, puzzles, reading, and lectures.

    “The lifelong benefits of higher education for memory in later life are quite impressive, but we do not clearly understand how and why these effects last so long,” said lead author Margie Lachman, a psychologist. She suggested that higher education may encourage lifelong interest in cognitive efforts, while those with less education may not engage as frequently in mental exercises that help keep the memory agile (敏捷地).

    But education early in adulthood does not appear to be the only route to maintain your memory. The study found that intellectual activities undertaken regularly made a difference. “Among individuals with low education, those who are engaged in reading, writing, attending lectures, doing word games or puzzles once a week or more had memory scores similar to people with more education,” said Lachman.

The study, called Midlife in the United States, assessed 3,343 men and women between the ages of 32 and 84 with a mean age of 56 years. Almost 40 percent of the participants had at least a 4-year college degree. The researchers evaluated how the participants performed in two cognitive areas, verbal memory and executive function — brain processes involved in planning, abstract thinking and cognitive flexibility. Participants were given a battery of tests, including tests of verbal fluency, word recall, and backward counting.

    As expected, those with higher education said they engaged in cognitive activities more often and also did better on the memory tests, but some with lower education also did well, explained Lachman.

    “The findings are promising because they suggest there may be ways to level the playing field for those with lower educational achievement, and protect those at greatest risk for memory declines,” said Lachman. “Although we can not rule out the possibility that those who have better memories are the ones who take on more activities, the evidence is consistent with cognitive plasticity (可塑性), and suggests some degree of personal control over cognitive functioning in adulthood by adopting an intellectually active lifestyle.”

    The Ice and Snow Festival Highlights

    It will fall upon January 1st, 2019 and last till the early March, 2019. Based on the theme of “Bright Pearl of the Crown of Ice and Snow”, a variety of activities about ice and snow, concerning tourism, culture, fashion and sport, will be open to all tourists.

    Painkillers (止痛药) are turning out to be a real pain: according to a new study in the British Medical Journal. Taking them for just a week can increase your risk of heart attack by 50%. The research suggested that the risk related to the use of certain drugs was greatest with higher doses (服用量) and during the first month of use. The potential risk may increase by 75% for medicines like ibuprofen (布洛芬) and naproxen, and more than 100% for rofecoxib.

    It all sounds bad but, your risk is very low, — say, one in a million — a 100% increase means you still only have a two in a million chance. Of course, all painkilling medication that works can have side effects — nothing is safe and effective. Paracetamol (扑热息痛) has very few unless taken too much, in which case it can cause serious liver danger, but it isn't very effective. Drugs like opiates are strong painkillers but easy to be addicted and often have other bad effects. Maybe you find that you are in a dilemma now. But don't despair; you can refer to a pain clinic for some professional guidance. For ongoing pain, music and exercise may be the best choices to help you reduce the feeling of it.

    Scientist at Harvard have recently done a quite horrible study on mice. They made the mice experience extremes of hot and cold, applied pressure to their back legs and injected the capsaicin (辣椒素) into their feet. And then they timed how long it took them to respond to the pain. Lack of sleep increased the discomfort, while stimulants (兴奋剂) such as caffeine made them less responsive to pain. This has been widely reported that a good night's sleep and a cup of coffee in the morning may help reduce pain.

    But anyway  don't throw the pills away because the study also shows taking small doses of drugs, such as for short periods of time can be effective and safe as long as your heart is in good condition.

Delicate, shining, and soft to the touch. The fabric called silk {#blank#}1{#/blank#} (find) its way into the heart of Chinese people in the past thousands of years.  {#blank#}2{#/blank#} origin of it is not clear, but the ancient Chinese people {#blank#}3{#/blank#} (credit) their own wisdom to Leizu, wife of the Yellow Emperor, as the inventor of sericulture (养蚕业).

The style and texture (质地) of silk are {#blank#}4{#/blank#}(variety). Hangluo satin from Hangzhou,Zhejiang province, is famous for its airy and thin texture, {#blank#}5{#/blank#} Yunjin brocade from Nanjing, Jiangsu province, a luxurious fabric often {#blank#}6{#/blank#} (use) for royal clothes, represents China's silk weaving (纺织) technique at its best time. Yunjin brocade is best made  {#blank#}7{#/blank#} hand, in a complex procedure that comprises more than a hundred steps. Even the most skilled artisans can only weave a few centimeters a day.

In the Western Han Dynasty (206 BC—AD 24), with Zhang Qian{#blank#}8{#/blank#} (open) up the routes to the western regions, silk graced countries in Central Asia, and later other parts of Eurasia and beyond.  {#blank#}9{#/blank#} (appropriate), its name marked China's major international trade {#blank#}10{#/blank#} (route), the ancient Silk Road and Maritime Silk Road.

As one of the wonders of ancient China, silk is not merely a type of fabric but a cultural symbol and a representative of elegance.

Scientists and spiritual teachers alike agree that the simple act of smiling can transform you and the world around you.It can make us appear more attractive to others. {#blank#}1{#/blank#} So before you read on,slap a nice,genuine smile on that face of yours.

How Smiling Affects Your Brain

The act of smiling activates neural messaging that benefits your health and happiness.For starters,smiling activates the release of neuropeptides(神经肽) that work toward fighting off stress.The feel-good neurotransmitters(神经介质) are all released when a smile flashes across your face as well. {#blank#}2{#/blank#}

How Smiling Affects Your Body

You're actually better-looking when you smile.A study published in the journal Neuropsychologia reported that seeing an attractive,smiling face activates the region in your brain that processes sensory rewards. {#blank#}3{#/blank#} It also explains the 2011 findings by researchers at the Face Research Laboratory.They found that both men and women were more attracted to images of people who made eye contact and smiled than those who did not.

{#blank#}4{#/blank#}

Did you know that your smile is actually contagious(传染性的)?In a Swedish study,subjects were shown pictures of several emotions:joy,anger and surprise.When the picture of someone's smiling was presented,the researchers asked the subjects to frown.Instead,they found that the facial expressions went directly to what subjects saw. {#blank#}5{#/blank#} If they don't,they're making a conscious effort not to.

A.How Smiling Affects Those Around You

B.Each time you smile,you throw a little feel-good party in your brain.

C.So if you're smiling at someone,it's likely that they can't help but smile back.

D.And it can even lengthen our lives.

E.How Smiling Affects Your Facial Expressions

F.They not only relax your body,but also lower your heart rate and blood pressure.

G.This suggests that when you view a person smiling,you actually feel rewarded.