This power point is made to complete the Academic Reading class 4 assignment.

1. Member of Group :
Riski Silvia ( 1910302108 )
Alzar Putra Prastha ( 1910302114 )
Hesti Dwi Rahayu ( 1910302115)
Report Text
assigment

2. Title
HOW MUCH SLEEP DO
WE NEED?
by R. T. Wilkinson

3. experimental psychology has developed better
methods of evaluating human performance and
behaviour. Studies, for example, of body and eye
movements, of sensory thresholds, and, above all, of
the electrical potentials of the brain during sleep,
encourage us to think that we may be able to assess
with useful accuracy the depth of quality of sleep.
In carefully controlled experiments also the amount of
sleep has been varied to find the effects of lack of sleep
upon performance and upon physiological changes in
the body, especially those which accompany the effort
to maintain normal behaviour and working standards in
spite of deprivation of sleep.
Main idea

4. From animal life, it can be seen that it is satiety rather than
fatigue that induces sleep, and awakening to satisfy a
need. but with the important difference that their needs
are often so complex and long-term that they can never be
fully satisfied.
Medical opinion, "Thousands of people drift through life
suffering from the effects of too little sleep; the reason is
not that they can't sleep but that they just don't. With
actions and decisions made weak from exhaustion

5. To get the whole picture, some believe that most people
are persuaded to sleep excessively. In Everyman in Health,
Dr. H. Roberts asserts, "It may safely be asserted that, just
as the majority eats too much, so the majority sleeps too
much." One can see the point of this as well; it would be a
shame to stifle our development by excluding those who
are gifted enough to work and play well on less than the
average amount of sleep, if it does not harm them.

6. There is no substantial scientific evidence to draw from,
and clinical evidence-based opinions present a picture
that is too contradictory to be a reliable guide. Studies on
what happens when we don't get enough sleep provide
indirect evidence on how much sleep we need. At first
glance, these indicate that we do not require as much as
we take.
It has been difficult to demonstrate any effect on
performance of as little as one night's sleep deprivation,
and even after three days awake, we can expect normal
efficiency in a man making responsible decisions in a job
that he finds absorbing and exciting.

7. Furthermore, when he is finally allowed to sleep, he will
most likely wake up after about twelve hours with little, if
any, ill-effect. These laboratory findings are supported by
examples from everyday life. It appears clear that the
human body is capable of bypassing the need for sleep in
order to respond to long-term emergencies with full
faculties.
However, the reversibility of the effect of sleep deprivation
in the face of urgent and absorbing demands may be the
most dangerous source of danger. People may believe
they are more efficient than they are.

8. Thank you