1 . People who get a good workout almost daily can add nearly four years to their life spans, according to the first study to quantify the effect of physical activity this way.

The researchers looked at records of more than 5,000 middle-aged and elderly Americans and found that those who had moderate to high levels of activity lived1.3 to 3.7 years longer than those who got little exercise, with men and women benefiting about equally.

“This shows that physical activity really does make a difference — not only for how long you live but for how long you live a healthy life.” said Oscar H. Franco of the Erasmus M.C. University Medical Center in Rotterdam. “Being more physically active can give you more time.”

Previous studies have found that being physically active has a host of health benefits. It reduces the risk of being overweight and of developing many illnesses, improves overall quality of life, and lowers the death rate. But the new study is the first to directly calculate the effect on how long people live.

People who engaged in moderate activity — the equivalent of walking for 30minutes a day for five days a week — lived about 1.3 to 1.5 years longer than those who were less active. Those who took on more intense exercise—the equivalent of running half an hour a day five days every week—extended their lives by about3.5 to 3.7 years, the researchers found.

The findings show that even for people who are already middle-aged, exercising more can add years to their lives, Franco said.

Other experts said the study was consistent with the growing evidence that exercising on a regular basis is one of the most important things people can do for their health.

“At the end of the day, this is more evidence that the sitting lifestyle is the most damaging to health, longevity and chronic disease development,” said James O. Hill of the University of Colorado at Denver.

Hill and others said exercising regularly also enables people to live healthier lives, free from a host of chronic illnesses that can make it hard for people to enjoy their later years.

In addition, recent studies have also found that exercise has payoffs for the mind, too. It has been shown to improve overall well-being and reduce stress and depression.

“The benefits of physical activity extend well beyond the effects on longevity,” said Joann E. Manson of Harvard’s Brigham and Women’s Hospital in Boston.

    1     physical activity is one of the most important things you can do for your health. Being physically active can improve your brain health, help manage weight, reduce the risk of     2    ,     3     bones and muscles, and improve your ability to do everyday activities.

MedalMad was created     1     (help) inspire and motivate people to be active. We have built a virtual community that supports each other to achieve their personal     2     (fit) or running goals and ambitions.     3     (take) part in MedalMad virtual runs or challenges is easy with a free virtual challenge app to track your challenges and runs. You can jog, row, cycle, swim, walk or roll your way to your amazing medal. You can even do a combination of all, or any.

5 . Regeneron Science Talent Search (Regeneron STS) is the oldest and most important science research competition for high school students all over the nation. Started in 1942, Regeneron STS recognizes and empowers most promising young scientists. Each year, nearly 2,000 students enter Regeneron STS. The competition awards 300 student scholars and their schools annually and invites 40 student finalists to Washington, D. C. to participate in final judging. Regeneron STS provides an important platform for their original research which is examined and reviewed by professional scientists.

●Applicants must be over 13 years of age and have legal parental permission to submit (提交) the application and participate, or be 18 years of age or older;

●Applicants must complete individual research projects to enter Regeneron STS. Research conducted as part of a pre-collegiate student team project is not qualified for Regeneron STS;

●Applicants must submit application package through our online system, and must not have entered any previous Regeneron STS.

●Essays, short answer responses, activities and basic information;

●Scientific Research Report (maximum 20-page research paper about one of the applicant’s original research projects);

●Recommendations submitted by adults;

●Test Scores (optional).

●PARTICIPATION AWARDS: All competitors will receive a T-shirt, laptop stickers, and a free one-year subscription to Science News magazine.

●SCHOLAR AWARDS: Each of the 300 scholars will receive a $2,000award.

●SCHOOL AWARDS: The schools of each scholar will receive $2,000 per scholar. The award is intended to contribute to excellence in science, math and/or engineering education at the school.

●FINALIST AWARDS: Judges select 40 finalists from among the scholars. In addition to an all-expense-paid trip to Washington, D. C., finalists receive a minimum award of $25,000.

The opening ceremony of the 19th Asian Games     1     (hold) in Hangzhou on September 23, bringing many     2     (athlete) gathering around. The ceremony was themed “Memories of Jiangnan”, using the element of water     3     (show) the natural beauty and cultural charm. The three mascots (吉祥物) )are a group of robots     4     (name) Congcong, Lianlian and Chenchen.

As we know, sports activity can make people more energetic and     1     (healthy) physically and mentally. However, everything has two sides. Sports are no exception. If you are not careful or do excessive (过度的) training, you     2     (hurt) yourselves. Thus, make sure that you do sports     3     (regular) and do not overdo it.

10 . Many places around the world host marathons that aim to provide their runners with a special experience. If you’re planning to run a race，check out some of these beautiful marathon destinations.

Are you up for a challenge? Hosted at Cusco, Peru, the Inca Trail Marathon is regarded as one of the most difficult marathons in the world. With Cusco’s rich history of being once the capital of the Inca Empire, participants can explore several ancient archeological sites. During the run, participants will get to see the surprising landscape of the “Lost City of the Incas”, Machu Picchu, and the Sacred Valley.

Held in Greece, the Athens Marathon is perfect for those of you who are interested in history mythology (神话), and architecture. There are many tourist spots and historic sites to visit like the Parthenon and the Acropolis of Athens. During the race, audience will be cheering on the participants creating an atmosphere similar to the Olympics.

Held at Carmel，California，the Big Sur International Marathon is known as the world’s largest rural marathon. Before the race，participants generally visit the world — famous Monterey Bay Aquarium (水族馆), which owns rich animals. The Julia Pfeiffer Burns State Park is another attraction stretching from 3,000-foot mountain ridges (山脉) to underwater canyons and rocky seaside cliffs.

Located at Limpopo, South Africa, participants can explore and check out the wildlife of the African savannah. The marathon is held in one of the “Big Five” game reserves in Africa. There are no fences or rivers that separate the runners from the African wildlife. Make sure to keep your mind clear You might find an elephant or even find yourself running alongside giraffes.