Assignment 18.03.2020
Reading. Make up 5 questions according to the text
What bad sleep schedule can cause?
What experiment was arranged in 1988 in Chicago?
What animals were used during that experiment?
What’s bad about working at nights?
What do companies do as an advantage, to help night-time workers?
Assignment for 18.03.2020
Reading. Make up 5 questions according to the text.
Reading. Make up 5 questions according to the text.
A good night’s sleep — an impossible dream?
Tonight, do
yourself a favor. Shut off the TV, log off the Internet and unplug the phone.
Relax, take a bath, maybe sip some herbal tea. Then move into the bedroom. Set
your alarm clock for a time no less than eight hours in the future, fluff up
your pillows and lay your head down for a peaceful night of restorative
shut-eye. That’s what American doctors advise.
American
sleep experts are sounding an alarm over America’s sleep deficit. They say
Americans are a somnambulant nation, stumbling groggily through their waking
hours for lack of sufficient sleep. They are working longer days — and,
increasingly, nights — and they are playing longer, too, as TV and the Internet
expand the range of round-the-clock entertainment options. By some estimates,
Americans are sleeping as much as an hour and a half less per night than they
did at the turn of the century — and the problem is likely to get worse.
The health
repercussions of sleep deprivation are not well understood, but sleep
researchers point to ills ranging from heart problems to depression. In a
famous experiment conducted at the University of Chicago in 1988, rats kept
from sleeping died after two and a half weeks. People are not likely to drop
dead in the same way, but sleep deprivation may cost them their lives
indirectly, when an exhausted doctor prescribes the wrong dosage or a sleepy
driver weaves into someone’s lane.
What
irritates sleep experts most is the fact that much sleep deprivation is
voluntary. “People have regarded sleep as a commodity that they could
shortchange,” says one of them. “It’s been considered a mark of very hard work
and upward mobility to get very little sleep. It’s a macho attitude”. Slumber
scientists hope that attitude will change. They say people have learned to
modify their behavior in terms of lowering their cholesterol and increasing
exercise. Doctors also think people need to be educated that
allowing
enough time for sleep and taking strategic naps are the most reliable ways to
promote alertness behind the wheel and on the job.
Well, naps
would be nice, but at the moment, employers tend to frown on them. And what
about the increasing numbers of people who work at night? Not only must they
work while their bodies’ light-activated circadian rhythms tell them to sleep,
they also find it tough to get to sleep after work. Biologists say night
workers have a hard time not paying attention to the 9-to-5 day because of
noises or family obligations or that’s the only time they can go to the
dentist. There are not too many dentists open at midnight.
As one might
imagine, companies are springing up to take advantage of sleeplessness. One of
the companies makes specially designed shift-work lighting systems intended to
keep workers alert around the clock. Shiftwork’s theory is that bright light,
delivered in a controlled fashion, can help adjust people’s biological clocks.
The company president says they are using light like a medicine. So far, such
special lighting has been the province of NASA astronauts and nuclear power
plant workers. He thinks that in the future, such systems may pop up in places
like hospitals and 24-hour credit-card processing centers. Other researchers
are experimenting with everything from welder’s goggles (which night workers
wear during the day) to human growth hormones. And, of course, there is always
what doctors refer to as “therapeutic caffeine use”, but everyone is already
familiar with that.
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