Read the text and answer question.
How long will you live?
Everyone wants to live a long and healthy life. Today, many scientists are trying to find the habits that help people live longer. In 1970, some scientists talked to 7,000 people in the United States and got information about ___________ habits. Then they checked to see how long the people lived.
The scientists learned that the people with the longest lives did seven things. (1) They ate breakfast every day. (2) They didn’t eat snacks between meals. (3) They weren’t too heavy or too thin. (4) They exercised regularly. (5) They slept seven to eight hours every night ‐ not more, and not less. (6) They didn’t smoke. (7) They didn’t drink more than two alcoholic drinks per day.
These were the habits that made a big difference. People who did all of these things lived 12 years longer than people who did only one to three of the things.
Scientists say that you should change your habits slowly. Make one small change every week. You need about 21 days to make a new habit.
Adapted. World English 1B. 2010. Heinle Cengage Learning.
According to the text, scientists