Working at a desk all day may not be as bad for your health as sitting in front of a television after work. That is a finding of a new study done in the United States. It also suggests that not all forms of sitting are equally bad.
Jeanette Garcia led the study. Garcia works as a researcher at the University of Central Florida in Orlando. "We've been hearing more and more about how sitting is the new smoking," she said. She added that other evidence suggests a relationship between health problems and time spent sitting. "However, it's been unclear whether all sitting is created equal, suggesting that as long as you reduce any type of sitting, then that's helpful in improving health," she added. "This study suggests that this may not be the case, and that we should focus more on leisure（休闲）time siting, mainly television viewing time, rather than sitting, in general.”
The study followed close to 3,600 African-American adults. Almost one-third of them watched television, or TV, for more than four hours a day. A little more than one-third of the subjects spent between two and four hours a day sitting in front of the TV. The remaining third watched TV for less than two hours a day. Researchers followed the group for an average of 8.4 years. During the study, 205 of the subjects died and 129 others suffered a heart attack or stroke.
Compared to people who watched less than two hours of television daily, those who spent more than four hours in front of the TV were 49 percent more likely to die or have a heart attack or stroke. But the undesirable health effects of TV appeared to be limited to adults who failed to get the recommended amount of weekly exercise. That is around 150 minutes of moderate（普通的）physical activity or 75 minutes of vigorous exercise every week.
Lin Yang is a researcher at the University of Calgary in Canada. She says it is possible that sitting in front of the TV might be worse than sitting at a desk because people snack while they are watching TV. Yang explained that “the evidence on TV viewing and health risks is strong," even if the exact biological causes are unclear.
【小题1】What does Garcia probably agree with?| A．Less sitting，better health. |
| B．All kinds of sitting create the equal effects. |
| C．We should focus more on time sitting. |
| D．Sitting is as harmful as the new smoking. |
| A．205 participants died of a heart attack or stroke. |
| B．3,600American-Afican adults were followed closely. |
| C．Participants were followed for an average of more than 8 years. |
| D．Over 1200 participants watched TV for more than 4 hours a day. |
| A．Those who watched less than two hours of television daily. |
| B．Those who spent more than four hours in front of the TV. |
| C．Those who spend 150 minutes on moderate physical activity. |
| D．Those who didn't get the recommended amount of weekly exercise. |
| A．Why sitting is the new smoking? |
| B．All kinds of sitting are equally bad? |
| C．More exercise produces good health? |
| D．Why TV viewing time is bad for health? |
The Healthy Habits Survey shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.
1. How many times did you brush your teeth yesterday? ●Finding:A full 33% of seniors brush their teeth only once a day. ●Step:Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day. 2. How many times did you wash your hands or bathe yesterday? ●Finding:Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash their hands only 4 times a day-- half of the number doctors recommend. ●Step:We touch our faces around 3,000 times a day -- often inviting germs (病菌) to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds. 3. How often do you think about fighting germs? ●Finding:Seniors are not fighting germs as well as they should. ●Step:Be aware of germs. Do you know it is not your toilet but your kitchen sponge (海绵)that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds. |
【小题1】Which of the following is true according to the text?
| A．There are less than 300 types of bacteria in the mouth. |
| B．We should keep from touching our faces. |
| C．We should wash our hands before touching a door handle. |
| D．A kitchen sponge can carry more germs than a toilet. |
| A．Most of them have good habits. |
| B．About one third of them brush their teeth only once a day. |
| C．Nearly 30% of them bathe three days a week. |
| D．All of them are fighting germs better than expected. |
| A．twice a day. | B．three times a day. | C．four times a day. | D．eight times a day. |
| A．a guide book. |
| B．a book review. |
| C．a popular magazine. |
| D．an official document. |
It’s not easy to classify viruses. They are not dead, because they have genes and evolve.
If you’re very overweight, you need to be extra cautious. Overweight people suffer from the flu virus 42 percent longer than those who aren’t overweight. Because being overweight is linked to many health problems, it may affect your immune system.
Soap and water really are the best defense. Washing your hands with soap is practically a good way to prevent viruses.
According to a research published in Molecules, green tea may be an immune booster. It may help you fight both cold and influenza viruses. Researchers found that drinking green tea regularly could help you recover from a cold quickly.
| A．It can also make the virus not work. |
| B．You can be infected without showing symptoms. |
| C．Extra weight may make the flu shot less effective too. |
| D．Viruses can survive for a short time outside the human body. |
| E．Yet they are also not alive because they can’t survive on their own. |
| F．Regular exercise has been shown to improve your immune system. |
| G．That even could make you less likely to get a virus in the first place. |
Eyesight plays an important part in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it’s easy to include steps into our daily life to ensure healthy eyes. Here are some suggestions for a lifetime of healthy eyesight:
I. Schedule yearly exams.
II. Protect against UV rays(紫外线).
Long-term stay in the sun creates risk to your eyes. No matter what the season is, it’s extremely important to wear sunglasses.
III. Give your eyes a break.
Two-thirds of Americans spend up to seven hours a day using computers or other digital products.
IV. Eat your green.
As part of a healthy diet, eat more fruits and vegetables each day. Vitamins C and E help protect eyesight and promote eye health.
V. Practice safe wear and care of contact lenses (隐形眼镜).
Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing lenses, many are breaking the rules and putting their eyesight at risk.
| A．Eye care should begin early in life |
| B．They can properly protect your eyes |
| C．Stay in good shape by taking more vitamins |
| D．Parents usually don’t care about their own eyesight |
| E．Always follow the doctor’s advice for appropriate wear |
| F．This frequent eye activity increases the risk for eye tiredness |
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