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Some sleep drugs do more than make you sleep
The United States Food and Drug Adnfinistration has ordered companies to place strong newwarnings on thirteen drugs that treat sleep disorders．It also ordered the makers of the sleeping pills toprovide information for patients explaining how to safely use the drugs．
Last Wednesday．the FDA announced that some of these drugs can have unexpected and dangerous effects．These include the risk of life—threatening allergic reactions．They also include rare incidents of strange behavior．These include people cooking food，eating and even driving while asleep．The patients later had no memory of doing these activities while asleep．
Last year．a member of the United States Congress said he had a sleep—driving incident．Patrick Kennedy．a representative from Rhode Island，crashed his car into a security barrier near thebuilding where lawmakers meet．The accident happened in the middle of the night and no one was hurt．Mr．Kennedy said he had earlier taken a sleep medicinE.He said he was also being treated with a stomach sickness drug that can cause sleepiness．
The Food and Drug Administration did not say in its announcement how many cases of sleep—driving it has documenteD.However，the New York Times reported last year about people who saidthey had strange sleep events after taking the drug Ambien．Some reported sleep—driving and sleep—walking．others said they found evidence after waking in the morning that they had cooked food or eaten in their sleep．But they had no memory of carrying out the activities．
A Food and Drug Administration official says that these serious side effects of sleep disorder drugs appear to be rarE.But．he also said there are probably more cases than are reporteD.He said the agency believes the risk of such behaviors could be reduced if people take the drugs as directed and do not drink alcohol while taking the drugs．The Food and Drug Administration has advised drug companies to carry out studies to investigate the problem．
第 16 题 There are ahogether 13 drugs treating sleep disorders in the United States．
A.Right
B.Wrong
C.Not mentioned

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E.They
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Napping to a Healthier Heart?Researchers say they have developed a simple test that can tell if a person with heart disease isl ikely to suffer a heart attack.The test measures levels of a protein in the blooD.The researchers say people with high levels of this protein are at high risk of heart attack，heart failure or strokE.Kirsten Bibbins—Domingo 0f the University of California in San Francisco led the team．For about tour years，they studied almost one thousand patients with heart diseasE.The researchers tested the heart disease patients for a protein called NT—proBNP．Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack，heart failure or strokE.The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men，s0 the researchers could notsay for sure that the results are also true for women．They say the patients with the highest levels of NT—proBNP were older and had other problems like diabetes or high blood pressurE.Other researchers say more tudies are needed to confirm if knowing the protein levels of a heart patient should affect that person’s treatment．They also would like to know if more aggressive treatment could reduce the patient’s chance of a heart attack or strokE.The study appeared in the Journal of the American Medical Association．Could a little sleep during the middle of the day reduce the risk of a heart attack ? An unrdated study earlier this month in the Archiyes of Internal Medicine suggests that the answer may be yes In countries like the United Stares，afternoon Haps are mosny for childten． But they are common for adults in Mediterranean countries．And these countries generally have lower rates of heart disensE.So scientists in the United Stares and Greece wondered if naps could play a part．Twenty—three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty—minute naps three times a week had a thirty—seven percent lower risk of death from heart pmblems than people who did not take naps.The researchers say napping may improve heart hearlth by reducing stress.They say the research suggests that naps are especially good for working men．But they say not enoush female subjects died during the study to judge the benefits for women．第 23 题 Paragraph 2________.

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Paragraph 6＿＿＿＿＿＿＿A.Importance of staying intellectually activeB.Effects of aging on a person's recall abilityC.Short-term memory versus long-term memoryD.Retention as the second necessity for memoryE.Link between learning strategies and effective memory skillsF.Significance of exercising your muscles

A.Effects
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