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Warm People Likely to Keep Cold at Bay
Staying positive through the cold season could be your best defense against getting ill, new study findings suggest. In an experiment that exposed healthy volunteers to a cold or flu virus, researchers found that people with a generally sunny disposition were less likely to fall ill.
The findings, published in the journal Psychosomatic Medicine, build on evidence that a "positive emotional style" can help ward off the common cold and other illnesses. Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat or runny nose.
"People with a positive emotional style. may have different immune responses to the virus," explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh. "And when they do get a cold, they may interpret their illness as being less severe."
Cohen and his colleagues had bound in a previous study that happier people seemed less susceptible to catching a cold, but some questions remained as to whether the emotional trait itself had the effect.
For the new study, the researchers had 193 healthy adults complete standard measures of personality traits, self-perceived health and emotional "style". Those who tended to be happy, energetic and easy-going were judged as having a positive emotional style, while those who were often unhappy, tense and hostile had a negative style.
The researchers gave them nasal drops containing either a cold virus or a particular flu virus. Over the next six days, the volunteers reported on any aches, pains, sneezing or congestion they had, while the researchers collected objective data, like daily mucus production. Cohen and his colleagues found that based on objective measures of nasal woes, happy people were less likely to develop a cold.
According to a study author, when people with a positive emotional style. do get a cold, they may think ______.

A. that their illness is very serious
B. that their illness is not so serious
C. that they do not get any illness at all
D. that the illness they get is not a mild one

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All those people who took part in the study received vitamins and minerals.

A. Right
B. Wrong
C. Not mentioned

An American research estimates that the total sum of money spent in treating ADRs each year is as much as

A. $40,000,000,000.
B. $4,000,000,000.
C. $400,000,000.
D. $40,000,000.

Fungus and molds in local foods may be partly responsible for the high cancer rate in Linxian.

A. Right
B. Wrong
C. Not mentioned

Drug Reactions m a Major Cause of Death
Adverse drug reactions may cause the deaths of over 100,000 US hospital patients each year, making them a leading cause of death nationwide, according to a report in the Journal of the American Medical Association.
"The incidence of serious and fatal adverse drug reactions (ADRs) in US hospitals was found to be extremely high," say researchers at the University of Toronto in Ontario, Canada.
They carried on an analysis of 39 ADR-related studies at US hospitals over the past 30 years and defined an ADR as "any harmful, unintended, and undesired effect of a drag which occurs at doses used in humans for prevention, diagnosis, or therapy."
An average 6.7% of all hospitalized patients experience an ADR every year, according to the researchers. They estimate that "in 1994, overall 2,216,000 hospitalized patients had serious ADRs, and 106,000 had fatal ADRs." This means that ADRs may rank as the fourth single largest cause of death in America.
And these incidence figures are probably conservative, the researchers add, since their ADR definition did not include outcomes linked to problems in drug administration, overdoses, drug abuse, and therapeutic failures.
The control of ADRs also means spending more money. One US study estimated the overall cost of treating ADRs at up to $4 billion per year.
Dr. David Bates of Brigham and Women's Hospital in Boston, Massachusetts, believes that healthcare workers need to pay more attention to the problem, especially since many ADRs are easily preventable. "When a patient develops an allergy or sensitivity, it is often not recorded," Bates notes, "and patients receive drugs to which they have known allergies or sensitivities with disturbing frequency." He believes computerized surveillance systems — still works-in-progress at many of the nation's hospitals — should help cut down the frequency of these types of errors.
Researchers at the University of Toronto believe that

ADRs have caused medical problems, though they seldom lead to death.
B. ADRs have very often caused patients to die in Canada.
C. ADRs have caused many deaths in America over the past 30 years.
D. it is easy to prevent ADRs from happening.

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