题目：
Job stress has been known to cause heart problems in people who already have cardiovascular(心血管) disease. Now Finnish scientists have shown that 50 in healthy people the pressure of work can cause damage. High blood pressure, lack of 51 , smoking and being overweight 52 to heart disease—a 53 killer in many industrialized countries. But Mika Kivimaki, of the Finnish Institute of Occupational Health, and his colleagues, who studied the 54 histories of 812 healthy Finnish men and women in a metal industry company over 25 years, said job stress also plays an important role. Workers who had the highest job-related stress levels at the start of the study were more than twice as 55 to die of heart disease, 56 the study published in The British Medical Journal. Work stress 57 too much work as well as a lack of satisfaction and feeling undervalued and 58 . Many people work long hours but if the effort is 59 the stress is minimized. Kivimaki said job pressure is damaging when being overworked is 60 with little or no control, unfair supervision and few career opportunities. The British Heart Foundation said the results 61 earlier research showing that people in jobs with low control, such as manual workers, could be at greater 62 of heart disease than other employees. “It is 63 for people to try to minimize levels of stress at work and for employers to 64 people to have more control at work and to be rewarded for their success,” the foundation said in a statement.
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