The Hispanic paradox has been documented for more than two decades, but this is the first time the government has had enough data to issue national numbers. Researchers are struggling to explain why Hispanics live longer.

　　“We don’t know,” says David Hayes-Bautista, director of the Center for the Study of Latino Health and Culture at UCLA’s David Geffen School of Medicine. “We thought it was a problem in the data, but we can pretty much say this is real.”

　　Potential factors:

　　·Culture and lifestyle. Support from extended family and lower rates of smoking and drinking. Latino groups in particular have very strong family and social ties.

　　·Migration. The “healthy migrant effect” argues that healthy people are more likely to emigrate. And when immigrants become ill, they might return home and die there.

　　“Solving the puzzle may help the nation deal with health care issues because Hispanics use health services less—they make fewer doctors visits and spend less time in hospitals,” Hayes Bautista says. “It’s clearly something in the Latino culture,” he says.

　　1. In 2006, Hispanics’ life expectancy is　years longer than the average of the total population.

　　A. 2. 5 B. 7. 7 C. 2. 9 D. 80. 6

　　2. What does the underlined word “outlive” in the second paragraph probably mean?

　　A. To live longer than. . .

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