Are you preparing for a big test? If so, you may want to go to play some basketball in between hitting the books. Doctors are starting to find more and more information that suggests a connection between exercise and brain development. Judy Cameron, a scientist at Oregon Health and Science University, studies brain development. According to her research, it seems that exercise can make blood vessels (血管), including those in the brain, stronger and more fully developed. Dr. Cameron is sure that this allows people who exercise to think better. As she says, “While we already know that exercise is good for the heart, exercise can actually cause physical changes in the brain.”

The effects of exercise on brain development can even be seen in babies. Babies who do activities that require a lot of movement show greater brain development than babies who are less physically active. Even a little movement can show big results. Margaret Barnes, a scientist, also believes in the importance of exercise. She thinks that many learning disabilities that children have in primary school or high school can result from a lack of movement as babies. Babies need movement that encourages and excites their five senses. They need to set up a connection between motion and memory. In this way, as they get older, children will begin to connect physical activity with higher learning,” says Margaret.

    Older people can develop their brains as well. Cornell University studied a group of seniors who have a short-term memory increase of up to 40 percent after exercising just three hours a week. The exercise does not have to be very difficult, but it does have to increase the heart rate. Also, just like the motion for babies, exercise for older people should not be too simple. Learning some new skills or actions, such as with yoga or tat- chi helps to open up memory paths in the brain that may not have been used for a long time. For most people, any type of physical activity that increases the heart rate is helpful. The main aim is to increase the brain's flow of blood. And your brain can benefit from as little as two to three hours of exercise a week.

    Cheating can happen in a lot of different ways. When people cheat, it's not fair to other people, like the kids who studied for the test or who were the true winners of a game.

Many people like the action of cheating. It makes difficult things seem easy, like getting all the right answers on the test. But it doesn't solve the problem of not knowing the material and it won't help on the next test — unless the person cheats again.

    Some people lose respect for cheaters and think less of them. The cheaters themselves may feel bad because they know they are not really earning that good grade. And, if they get caught cheating, they will be in trouble at school, and maybe at home, too.

    Some kids cheat because they're busy or lazy and they want to get good grades without spending the time studying. Other kids might feel like they can't pass the test without cheating. Even when there seems to be a “good reason” for cheating, cheating isn't a good idea.

    If you were sick or upset about something the night before and couldn't study, it would be better to talk with the teacher about this. And if you don't have enough time to study for a test because of swim practice, you need to talk with your parents about how to balance swimming and school.

    A kid who thinks cheating is the only way to pass a test needs to talk with the teacher and his or her parents so they can find some solutions together. Talking about these problems and working them out will feel better than cheating.

    Almost every light comedy or situation comedy makes me feel like I should be drinking wine every night with my best friend while one of us tries on clothes. Not only should we share the same dress size, but we should also have a long, rich history of togetherness and secrets. Clearly, this is not reality.

    I have 598 friends. OK, but if I'm honest, 99.3 percent of those friends are those I met only once or acquaintances who live too far away to see regularly. That leaves 4 people, who I can call anytime, not feeling like I'm absolutely wasting their time. The remaining 0.2, I've decided, is my houseplant. I can tell it anything.

    Feeling the same way? You're absolutely not alone. Most of us find our "people" in school, but over time life changes: marriage, kids, etc. We grow out of our relationships and they grow out of us.

    So when the relationships come to an end, how do you find a new one?

    A woman in my apartment building, who I had seen around over the years, approached me one day and introduced herself. She bravely stated, "You seem cool. Do you want to hang out with me sometime? I'm looking for new friends." I almost dropped my bag of groceries at her social honesty. And now we get together for coffee a few times a year, gossip (八卦) about the neighbors, and take in the mail when one of us is on vacation. But a few times a year isn't enough for me.

    So, what counts as true friendship as you get older? For me, it's feeling comfortable enough to be myself. And if you're like me, it's also trust — not just keeping the secret, but trusting that my life choices aren't their gossip elsewhere.

    Many people, both men and women in the world love drinking. The popular wisdom for years has been that drinking in moderation (适度) —that's one “standard” drink a day for women and two for men—is linked to a lower risk of cardiovascular (心血管的) disease. But recent studies are casting some doubt on that long-held learning. Science now says it depends on your age and drinking habits.

    A 2017 study of nearly 2 million British with no cardiovascular risk found that there was still a modest benefit in moderate drinking, especially for women over 55 who drank five drinks a week. Why that age? Alcohol can influence the substance in the blood in positive ways, experts say, and that's about the age when heart problems begin to occur.

    Also, a 2018 study found that drinking more than 100 grams of alcohol per week—equal to roughly seven standard drinks in the United States or five to six glasses of wine in the UK—surely increases your risk of death from all causes and in turn lowers your life expectancy. Links were found with different forms of cardiovascular disease, with people who drank more than 100 grams per week having a higher risk of stroke, heart failure.

    Another 2018 study found that consistently drinking moderately, within the recommended amount of alcohol, had a protective effect on the heart over time. Unstable drinking habits were associated with a higher risk of heart disease, which the authors reflected might indicate broader lifestyle changes, such as poor health or stress. Former drinkers were also at greater risk.

    Overall, however, the latest thinking is that any heart benefit may be outweighed by other health risks, such as high blood pressure, certain cancers and liver damage.

    Women who drink are at a higher risk for breast cancer; alcohol contributes about 6% of the overall risk, possibly because it raises certain dangerous hormones in the blood. Drinking can also increase the chance you might develop liver, mouth and oral cancers. One potential reason： Alcohol weakens our immune systems, making us more likely to inflame (发炎)—a driving force behind cancer.

Land of fire and ice: Iceland

    Join an unforgettable tour of Iceland's splendid landscapes, timed to arrange four days filled with volcanic and geological adventure, and evening opportunities to see the Aurora Borealis.

    Day 1: Vatnajokull Glacier (冰川)

    Today you'll take a walk on Europe's biggest ice cap-Vatnajokull-which has around 30 glaciers flowing out from it. No experience is necessary to take part in the hike. It's discouraging to think that the glacier is retreating due to rising world temperatures, and in future years the glacier may be gone. If you prefer a relaxing morning you can explore the surroundings of the farm stay and head to the Thorbergur Centre.

    Day 2: Secret lagoon (泻湖) and Reykjavik

    This morning we make our way to the Lava Centre which is an interactive, high-tech educational exhibition describing volcanic activity, earthquakes and the creation of Iceland over millions of years. After our visit, we will continue to the Secret Lagoon natural hot springs, located in the small village called Fludir, giving you the opportunity to relax in the warm waters before travelling to Reykjavik.

    Day 3: Reykjanes peninsula (半岛)

    Head out to the Reykjanes Peninsula. It is a land-born highly volcanic counterpart of the Mid-Atlantic Spreading Ridge where two tectonic plates part at an average rate of 2.0-2.5 cm/yr. Four volcanic systems and fissure (裂缝) groups line the peninsula from SW to NE. They contain open fissures, normal faults, high-temperature fields and volcanic fissures.

    Day 4: Depart Reykjavik

    Today is departure day and time to say "sjaumst". Your group departure transfer will take you to the airport for your flight home.

How satisfied are you with your life? How good do you feel every day? Your answers to those two questions can show how happy you are

It's true that your happiness is partly affected by your genes. {#blank#}1{#/blank#} According to experts, happiness is a choice. It's something that you can develop with continuing practice. Following these tried-and-true tips can help you find happiness.

Be kind to yourself.

Don't compare yourself to others. Everyone has different talents and abilities. It's OK that you're not like someone else. Comparison has been called "the thief of joy". In addition, forgive yourself often. {#blank#}2{#/blank#}.

Take breaks from social media.

{#blank#}3{#/blank#} Yet much of what appears on social media is not real. Many people compare themselves with those images, resulting in feelings of discouragement.

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

Spending time with people you love and that love you is necessary for building strong connections and developing a sense of belonging. By devoting time and attention to those who matter most to you, you can create lasting memories, deepen understanding, and strengthen bonds with each other happily.

Get outside for exercise.

Nature helps to reduce stress. Exercise and put your health in the first place. {#blank#}5{#/blank#} Just going on a walk can make a difference.

Limit time you spend on news.

Stay aware of recent events. But don't spend hours consuming news, which usually includes negative stories and events.

Since happiness is a choice, why not choose it? Life will look brighter filled with love and joy!

A. You are not perfect.

B. Invest in your relationships.

C. Determine happiness through actions.

D. You could perhaps lead a happier life and feel more satisfied.

E. But even if you're not usually a happy person, you can change that.

F. People who get up and move are usually happier than those who don't.

G. The Internet is full of people who look beautiful and seem to lead exciting lives.