39 th joint school science exhibition competition
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39 th Joint School Science Exhibition Competition. Science Unlimited, Health Potentiated. Group 26. Shatin Tsung Tsin Secondary School. Project Holders: (Tony) Leung Chun Yam (Chloe) Lai Ka Ni (Kim) Lam Chun Kong

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39 th Joint School Science Exhibition Competition

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39th Joint School Science Exhibition Competition

Science Unlimited, Health Potentiated

Group 26

Shatin Tsung Tsin Secondary School

Project Holders: (Tony) Leung Chun Yam

(Chloe) Lai Ka Ni

(Kim) Lam Chun Kong

(Charles) Tang Chi Hung

Better Sleep, Better Health

  • Better sleep leads to better health because during sleep…

  • - lower metabolic rate

  • - lower heart beat rate

  • - muscle relaxation

  • - repair of damaged cells

  • - less susceptible to diseases

Better Sleep, Better Health


  • Hong Kong citizens commonly suffer from

    • Insomnia

    • sleep apnea syndrome


To improve the quality of sleeping by:

  • Increase the chance of falling asleep

  • Reduce the frequency of awakening during sleeping


  • Cause


    2. Disturbance from surrounding :


1. U-shape pillow

1. U-shape pillow

Features of the pillow

  • U-shape

  • Sound-proof material

    • reduce the

    • disturbance to sleep

Features of the pillow

  • 3. Music player

  • a. theory of music therapy

  • b. increase the ease of falling asleep

Features of the pillow

  • 4. Vibrator

  • a. promote transmission of sound

  • b. does not disturbthe others

Transmitting sounds through air and skull bones

Advantages of the pillow

  • Reduce disturbance from falling asleep

  • Help relax and reduce stress by playing music

  • Promote transmission of sound when playing music

Sleep Apnea Syndrome (SAS)

  • Obstructive Sleep Apnea Syndrome

  • Cause:

    Collapsing of soft tissue in the rear of throat during sleeping

Picture from http://www.cemmahk.com.hk

2.Balloon Jacket

Features of the balloon jacket

  • Air pump

    • - controlled by a sound sensor for detecting sound intensity of snoring

Features of the balloon jacket

2. Air bag

a. its inflation (gradually) turns the user to the position of side-sleep

b. relieve the syndrome of sleep apnea

Diagrams illustrating how the air bags work

Advantages of the jacket

  • Reduce the disturbance caused by the air tube connected to the air pump

  • Provide more ‘natural’ ventilation

  • Allow different sleeping postures

  • Suit all ages

3. Demonstrations in exhibition

  • a. Music Therapy

  • - Comparing the heart beat rate of an audience during normal activity and listening to music with different tempos.

  • listen to music with…slow tempo →heart beat rate decreasesfast tempo → heart beat rate increases

3. Demonstrations in exhibition

b. Pillow of different materials

- Let audiences compare pillows which are made of different materials e.g. Memory foam, cotton etc.

- Explaining the difference between them and why we chose the material to made the pillow

3. Demonstrations in exhibition

c. Transmission of sound by skull bone

- The following device is to demonstrate the idea:

3. Demonstrations in exhibition

  • d. Inflation of the air bags

  • A small scale model is used in order to demonstrate the method of using the inflation of the air bags to adjust the sleeper in side-sleep position.

-The End-

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