a. they allow them to “power nap” in the
afternoon, if only for 20 minutes.
b. losing just one or two hours of sleep a
night, over a long period of time, can cause serious health problems.
c. people usually sleep longer in the
winter, sometimes as much as 14 hours a night.
d. people in power are more intelligent
because they take naps.
e. medical experts now believe that sleep
is even more important for health than diet or exercise.
f. that’s why, without enough sleep, a
normally intelligent person may start to have difficulty doing daily tasks.