阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
If you only got six hours' shut eye last night,
there is no need {#blank#}1{#/blank#} (lose) sleep over it.
Scientists say that though
it is {#blank#}2{#/blank#} (wide) believed that we
need eight hours of sleep a night, six to seven hours is the natural amount.
Advising short-sleepers
to rest easy, the US researchers say, {#blank#}3{#/blank#} (have) important
implications (暗示,含义) for the idea that we need to take sleeping
pills because sleep has been reduced from {#blank#}4{#/blank#} (it) natural level by the widespread use of electricity, TV, the
Internet and so on.
The lead author of a
study, Ghandi, said: "There's the {#blank#}5{#/blank#} (expect) that we should all be sleeping for eight or nine hours a
night, and if we took away modern technology, we would be sleeping more. But
now, for the first time, we are showing that's not {#blank#}6{#/blank#} truth."
Most of those {#blank#}7{#/blank#} were studied slept for less than seven hours a night, with the
average amount just six hours and 25 minutes. This is much less than the eight
hours often {#blank#}8{#/blank#} (recommend) in western
societies.
Despite this, the people
studied were in good health, {#blank#}9{#/blank#} lower rates of obesity (肥胖症), better blood pressure and {#blank#}10{#/blank#} (healthy) hearts than people in industrialised societies. They
were also fitter.