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| Playing sports like running every day l _ good to your longer life. But researchers at Boston University have also found people are likely(可能WJ) to live to age 100 or 2_____because of a kind of genes(基因) in people. The technique may also help doctors know 3_____ you may get a disease before tlie signs show up. Living a long, 4 .life lies in your fanulie.s. If your grandparents and parP.nts lived into their 90s and 5 healthy until the end, there's a pretty good chance vou will have, too. So it's 6 that genes play an important role in your ages. The Boston University researchar says this kind of findings are very 7 _ ancl important, not just in knowing who will live longest, but in 8 helping people live longer and healthier lives. As the cost of the 9 genetic tests goes on dropping , he says doctors will be able to screer patients for diseases they may not10 until later in life, and gave ways to avoid them. |