Q: Preventing obesity and smoking can save lives, but it doesn't save money, reported researchers. "It was a small surprise, for it is against the common belief," said Pieter Van Baal, who led the study. "But it makes sense. If you live longer, then you cost the health system more."

The researchers found that from age 20 to 56, obese people racked up the most expensive health costs. But on average, healthy people lived 84 years. Smokers lived about 77 years, and obese people lived about 80 years. Smokers and obese people tended to have more heart disease than healthy people. Therefore in the long run, the thin and healthy group cost about $417, 000, from age 20 on. Smokers cost about $326, 000 and obese people $371, 000.

"The result throws a bucket of cold water onto the idea, based on guesswork, that obesity is going to cost trillions of dollars," said Patrick Basham, a professor of health politics. "If we're going to worry about the future of obesity, we should stop worrying about its financial impact," he said.

"The benefits of obesity prevention may not be seen immediately in terms of cost saving in tomorrow's budget, but there are long-term gains," said Van Baal. "These are often immeasurable when it comes to people living longer and healthier lives." In the meanwhile, he said that governments should recognize that successful smoking and obesity prevention programs mean that people will have a longer chance of dying of something more expensive later in life.

"Lung cancer is a cheap disease to treat because people don't survive very long. But if they are old enough to get Alzheimer's one day, they may survive longer and cost more. We are not advising that governments stop trying to prevent obesity," Van Baal said. "But they should do it for the right reasons."

1. 20 to 56,
2. 77 years
3. 80 years
4. $326, 000
5. $417, 000
6. that obesity is going to cost trillions of dollars
7. 84 years
8. a professor of health politics
9. stop worrying about its financial impact
10. The benefits of obesity prevention may not be seen immediately

Numbered questions:
1. What age group of obese people had the most expensive health costs?
2. How long did smokers live?
3. How about obese people?
4. What was the average cost for Smokers?
5. What about the thin and healthy group?
6. Patrick Basham says obesity will cost how much?
7. How long did healthy people live on average?
8. What was the role of Patrick Basham?
9. Basham said we should stop worrying about what?
10. Does obesity prevention have immediate benefits?

input: Make use of the article to answer the questions. Everyone dreams of seeing the world. But some people take that dream to the extreme.

In 2000, Canadian Jean Beliveau was suffering from a mid-life crisis . He thought a good walk might help. So, he decided to go for one... around the whole world. It took him 11 years and 54 pairs of shoes. He ate insects in Africa, survived a puma attack in South America, and fell in love for nine days in Mexico. Jean has successfully overcome his mid-life crisis and is now writing a book about his 75,000- kilometre journey.

A Russian man, Vladislav Ketov, is currently cycling around the globe. So far he's ridden through 93 countries. And he's been at it for 20 years. Why so long? Two reasons. Firstly, he's not just going through countries, he's actually riding along the coast of every continent. Secondly, he set off without any money. He has to draw portraits of the people he meets along the way to carry on with his trip. Of course, he is planning to write a book on his eventual return, too.

Then there's Ezra Cooley. He set out in 2006 with the idea of riding his horse around the world. Why? "I've always wanted to accomplish something," Ezra said. So far he's only ridden across the United States and part of Australia. He recently took a year off to write a book about his trip.

Circling the globe has a long history. In 1901, Captain Voss (from Canada) set off around the world in a 12-metre dugout canoe . Even more impressive, the canoe, which Voss bought from a Native American woman, was built in the early 19th century. He armed the canoe with a Spanish cannon for protection. The journey took three years and, of course, Voss wrote about his trip in a book. 1. Who dreams?
2. who was suffering?
3. who was suffering?
4. From what?
5. When?
6. What did he do about it?
7. for how long?
8. How many pairs of shoes?
9. What did he eat?
10. Where
11. How long did he fall in love?
12. Where?
13. How far was his walk?
14. Who is cycling around the globe?
15. What nationality is he?
16. How many countries has he gone through?
17. For how long?
18. How does he sustain himself?
19. For how long?
20. Who rides his horse around the world?
21. When did he start?
22. Why?
23. Did he take a year off?
numbered_answers: 1. Everyone
2. Jean Beliveau
3. Jean Beliveau
4. a mid-life crisis
5. in 2000
6. he walked
7. 11 years
8. 54
9. insects
10. Africa,
11. nine days
12. Mexico
13. 75,000- kilometre
14. Vladislav Ketov
15. Russian
16. 93
17. 20 years.
18. draws portraits
19. 20 years
20. Ezra Cooley.
21. 2006
22. he wanted to accomplish something,
23. yes

The trial of Oscar Pistorius, accused of killing his former girlfriend Reeva Steenkamp, was postponed until April 7 because one of two assessors was hospitalized.

The assessors will help the judge decide the verdict. South Africa does not have jury trials.

Pistorius killed Steenkamp on Valentine's Day last year. Of that, there is no doubt.

But was it murder?

One of South Africa's toughest prosecutors, Gerrie Nel, has been fighting for most of this month to prove it was.

On Friday, one of the country's shrewdest defense lawyers, Barry Roux, was scheduled to begin convincing a judge that it wasn't.

Now he will have to wait.

The verdict will hinge on two questions:

Did the Olympic sprinter know his girlfriend was behind the door in the bathroom of his house when he fired four hollow-point bullets through it in the middle of the night?

And if he did not -- if he thought she was a burglar, as he insists -- did he act as a reasonable person would have?

Critical testimony will come from the only living person who was in the house at the time, the "Blade Runner" himself.

Pistorius was expected to take the stand for the first time Friday to give his side of a story he's been telling for more than a year.

He woke up in the middle of the night, went to his balcony to bring in a fan -- or two fans, in his most recent version -- heard his bathroom window opening, took his gun, went to the bathroom and fired through the door when he heard a noise in the toilet. What are the answers to this following set of questions: 1. Who doesn't use a jury?
2. What do they use instead?
3. How many?
4. Who do they assist?
5. with what?
6. Who is on trial?
7. For what?
8. Who was that?
9. When did he do it?
10. What day?
Answer:
1. South Africa
2. assessors
3. two
4. the judge
5. the verdict
6. Oscar Pistorius
7. killing his girlfriend
8. Reeva Steenkamp
9. last year
10. Valentine's Day