Sunday, 1 July 2012

IMPORTANCE OF SLEEP

Speech Title:  Importance of Sleep
Specific Purpose: To inform my audience about the importance of sleep.
Central Idea/ Thesis statement:
Sleep is very importance to people because it helps to reduce occurrence of mood disorder, control weight issues and boosting our memory
I.              Introduction

A.    Attention Material  :
“A good laugh and a long sleep are the best cures in the doctor's book”. According to Irish proverb, due to more laughter and enough sleep we could live longer. As a teenager, we need 8 hours of sleeping every day. So, how many of you here thinks that you have enough deep sleep last night? 
B.   Tie To Audience/ Relevancy Statement/ Reveal Your Topic:
For your information in average, human will spend about 20-25 years sleeping over 75 years of life span. The figure is quite shocking as we never realise that sleeping have become our essential life process. It is as important to our well-being as the food we eat, the water we drink, and the air we breathe. Unfortunately, it is easy to take sleep for granted. As a student we tend to get busy and likely to regard sleep as a waste of time.
C.   Credibility Material

But please don’t regard sleeping as a waste of time as lacks of sleep will lead harms to your body. Our brains will become active during sleep. So that sleep will affects our physical and mental health, and is essential for the normal functioning of all the systems of our body, including the immune systems. The effect of sleep on the immune system affects human’s ability to fight disease and endure sickness.
D. Thesis & Preview:
Today I’m going to inform about the important of sleeping that leads to reduce occurrence of mood disorder, control weight issues and boosting our memory.
  1. Body
B.   Main Point 1
A deep sleep can boost our memory by recalling and reorganizing the facts being stored in our brain and sharpens up our mind. While sleeping our brain cell will be repaired and the connection between neurons will be build up, this will improve the storage of memory in our brain. 

1. Sub point 1:
Sleep plays an important role in memory consolidation.
i.              While sleeping our brain will accumulate all the information we process on a daily basis and it turns into memories we use.

ii.            When a person is sleep-deprived the brain will move information from a temporary memory to long-term stores and it will cause the lost of information or called memory lost.
2. Sub point 2:
In scientific point of view, sleep can improve the interconnection between neurons in the brain.
i.              A deep sleep can boost the formation of rapid electrical waves in the brain which can speed up or improve our memory

ii.            German researchers found that by running a weak electrical current through the brain of a sleeping student may improve the performance on a word-recall task.

iii.           10 different hormones and neurotransmitter will go sideways when lack of sleep it will effect a region of brain called   “medical temporal lobe” which function as a memory storage.

3. Sub point 3:
Sleeping well helps to relax our brain and make information a permanent memory rather than a short term memory.
i.              Brain relaxation by having a nap has restorative function after a long period of learning, it will help the declarative of memories and make them easier to recall.

ii.            Repeating long study periods in the same day with the same task may cause a negative effect by stressing our brain therefore students should not cram study for exam and should optimize our learning process and most importantly get a normal sleep each night to restore memory.

C.   Main Point 2
A sufficient sleep helps people to avoid the tendency of being agitated or moody by the following day. Research shows that people with limited sleep tend to have long term mood disorders such as anxiety and depression.


1.    Sub point 1

Sleep help improving Circadian Rhythms in biological body system.


                                      i.        Circadian Rhythms regulate changes in performance, endocrine rhythms, and sleeping time. (Duffy, Rimmer & Creisler, 2011)
                                    ii.        Controlling sleep and waking cycle, blood pressure, reaction time, level of alertness, patterns of hormones secretion and digestive function.


2.    Sub point 2:

Sleep preventing from bipolar and mood disorders.


                                       i.    Mood and bipolar disorders are characterized by a drastic change in emotion from one side of the spectrum to the other.
                                     ii.    Sleeping time is the best duration for body system to create a chemical balancing in brain.     During this time, a transmitter called endorphinc (opiods) will works effectively. 

C. Main Point 3:
Sleeps helps control body weight issues.
1.    Sub point 1 :

Eliminate unneeded amount of water in our system through respiration and transpiration or sweating

i. transpiration and respiration happens through skin known as sweating.
ii. Helps in changing amount of water in our body system.


2.    Sub point 2:

Extremes in sleep duration are related to more abdominal fat in individual-higher body mass index (BMI)

3. Sub point 3:
Hormones called leptin and ghrelin influence our appetite which relate how much or how little we sleep. 

                                    iii.    People who cannot sleep will face a situation where the increasing of appetite that doesn’t lead for craving a healthy foods but treasure for foods with high calories.



    II.        Conclusion

In a nutshell, sleep is definitely important:

Main point restatement:
A.      It helps us in brain memory consolidation.
B.      It also helps to improve the interconnection between neurons in the brain.
C.      It helps to relax our brain and make information a permanent memory rather than a short term memory.
D.     It helps in improving our Circadian Rhythms in biological body system.
E.      It helps to reduce the occurrence of mood disorders.

Conclude With a Quote: 
F.       Sleeping is like a special treatment for us after a day of working.
G.     It is simply the best way for us to get rest. 
H.     We would like to end our speech with a quote by the famous French writer, Sebastien Roch Nicolas Chamfort.
I.        Living is a disease from which sleep gives us relief eight hours a day”. Thank you very much.








   III.        Bibliography:


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             viii.            Kristin. (2011, 8 25). Catch Some Z’s. Retrieved 11 23, 2011, from Healthy Outlook Worldwide Inc.             : http://www.healthyoutlookworldwide.com/?page_id=27
                ix.            S.L. (2011, 3 1). The Effect of Sleep Deprivation on Brain & Behavior. Retrieved 11 23, 2011, from Serendip Update, Biology 202, 2001 Third web Report On Serendip : http://serendip.brynmawr.edu/exchange/node/1690
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                 xi.            Bouchez, C. (n.d.). WebMD. Retrieved 11 20, 2011, from The Dream Diet: Losing Weight While You Sleep: http://www.webmd.com/sleep-disorders/guide/lose-weight-while-sleeping
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