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题型:其他 难度:0.65 引用次数:35 题号:21749634

A new research has found that comedy doesn’t just make us feel good — it actually has the power to improve health. A recent study was conducted to test whether or not “laughter therapy (疗法)”could help people who have heart disease.

The study involved 26 adults, with an average age of 64. They all had coronary artery (冠状动脉) disease, which happens when the supply of blood to the heart is held up by plaque (斑块)   that grows in the coronary arteries, the big tubes that send blood to the heart. Over three months, 13 of the adults were asked to watch two-hour-long comedy shows every week. The other 13 were asked to watch two documentary films on serious topics like politics and the Amazon rainforest. Then, the participants were examined by doctors.

The first group that watched comedy showed a big improvement in the amount of oxygen which we breathe in to survive and that the heart could pump around the body. Their arteries also got better at expanding, which meant that more blood could flow through them. There was less plaque in the arteries afterward too, cutting the person’s risk of having a heart attack or stroke.

The study was led by Marco Saffi, a professor at a hospital, who said laughter helps the heart because it releases chemicals in the body called endorphins. They reduce inflammation, which can lead to heart disease, and help the heart relax.

Having a good laugh also reduces levels of stress hormones (荷尔蒙). Stress hormones are the body’s natural alarm system, which kicks in if a person is in a tense situation. They’re great for helping people cope with danger, but they can put a strain on the heart if they stay in a person’s system for too long.

Saffi thinks the results show “laughter therapy” could be used to treat patients at the risk of heart problems. He said, “It does not have to be TV programs — people with heart disease could be invited to comedy evenings or encouraged to enjoy fun evenings with friends and family.”

How does Saffi feel about “laughter therapy”?
A.It’s costly.B.It’s unique.C.It’s promising.D.It’s unworthy.
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Psychologist Susan Levine, an expert on mathematics development in young children at the University of Chicago, found children who play with puzzles between ages 2 and 4 later develop better spatial skills. Puzzle play was found to be a significant predictor of cognition(认知) after controlling for differences in parents’ income, education and the amount of parent talk, Levine said.

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