Happily married people have lower blood pressure 51 unhappily married people or singles, a Brigham Young University study says.

On the other hand, even having a supportive social network did not translate into a blood pressure benefit for singles or unhappily __ 52 ___ people, according to the study.

"There seem to be some unique health benefits from marriage. It's not just being married __ 53 __ benefits health - what's really the most protective of health 'is having a happy 54 ," study author Julianne Holt-Lunstad, a psychologist who specializes in relationships and health, said in a prepared statement.

The study included 204 married and 99 __ 55 __ adults who wore portable blood-pressure monitors for 24 hours. The ___ 56 __ recorded blood pressure at random intervals and provided a total of about 72 readings.

"We wanted to capture participants' blood pressure doing whatever they normally 57 in everyday life. Getting one or two readings in a clinic is not really __ 58 __ of the fluctuations that occur throughout the day," Holt-Lunstad said.

Overall, happily married people scored four points __ 59 ___ on the blood pressure readings than single adults. The study also found that blood __ 60 __ among married people – especially those in happy marriages - __ 61 __ more during sleep than in single people.

"Research has shown that people whose blood pressure remains high' throughout the night are at __ 62 __ greater risk of heart disease than people whose blood pressure drops," Holt-Lunstad said.

The study was published in the March 20 __ 63 __ of the journal Annals of Behavioral Medicine.

The study also found that unhappily married adults have higher blood pressure than __ 64 happily married and single adults.

Holt-Lunstad noted that married couples can encourage healthy habits in one __ 65 ___ , such as eating a healthy diet and having regular doctor visits. People in happy marriages also have a source of emotional support, she said.

練習：

51. A from B to C than D by

52. A married B engaged C linked D loved

53. A which B that C this D what

54. A life B marriage C partner D spouse

55. A young B old C single D experienced

56.A monitors B doctors C nurses D researchers

57. A take B do C make D want

58.A supportive B active C representative D protective

59. A most B lower C higher D least

60. A pressure B speed C level D flow

61. A stopped B dropped C rose D ran

62. A more B some C much D any

63. A page B number C copy D issue

64.A nor B both C neither D either

65. A another B each C other D every

答案：CABBC ABCBA BCDBA

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