Heart disease is the number one killer，worldwide，of men and women over the age of 60.But people of all ages die of heart attacks each year.And while death rates have declined in the U．S.and many western European countries________

　　No one would have guessed that Barbara Teng would have a heart attack.She was not overweight.She did not smoke or exercise.“In 2004，the week after I turned 49，when I was on a business trip in Chicago，I had a major heart attack，” she said.2.________ She now exercises daily，and monitors her heart health.

　　Dr.Patrice Nickens，who is with the National Heart，Lung and Blood Institute，thinks that heart disease is 82 percent preventable.“3.________” she said，“Men are also facing the same problem，and the key to staying healthy is knowing your numbers”．________

　　“And the steps to take are simple: don’t smoke，maintain a healthy weight，exercise，know your numbers and talk to your physician and control these risks，” she said.

　　African­Americans are at higher­than­average risk for heart disease and stroke；people don’t even know they have itcreases the risk.Medstar Washington Hospital Center is trying to reach this population.5.________For example，helping the people monitor their blood pressure.If people realize they are at risk for heart disease，the’ll make lifestyle changes: lose weight，exercise，eat the right foods and keep in touch with a doctor.

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