[单项选择]Sleep is a funny thing. We’ re taught that we should get seven or eight hours a night, but a lot of us get by just fine on less, and some of us actually sleep too much. A study out of the University of Buffalo last month reported that people who routinely sleep more than eight hours a day and are still tired are nearly three times as likely to die of stroke—probably as a result of an underlying disorder that keeps them from snoozing soundly.
Doctors have their own special sleep problems. Residents are famously sleep deprived. When I was training to become a doctor, it was not unusual to work 40 hours in a row without rest. Most of us took it in stride, confident we could still deliver the highest quality of medical care.
Maybe we shouldn’t have been so sure of ourselves. An article in the Journal of the American Medical Association points out that in the morning after 24 hours of sleeplessness, a person’ s motor performance is comparable to that of someone who is legally into
A. In a recent scientific research, the scientists points out that someone who sleeps beyond the limit will probably not be in good health.
B. In the United States, the doctors usually do not take their sleep problems seriously.
C. Most doctors agree that the problems should be solved only by way of some compulsory means.
D. The U. S. government has already restricted the doctors’ working hours.