The Yin-Yang theory is an ancient Chinese philosophy about how opposites like hot and cold can coexist in harmony. It originated over 5000 years ago in Taoism and is symbolized by the iconic Yin-Yang symbol of balanced black and white forces. The main principles are that Yin and Yang are opposing but interdependent aspects that can transform into each other and contain aspects of the other within themselves. The theory is applied in Traditional Chinese Medicine, Tai Chi practices, and achieving balance in many aspects of life.

1. Yin - Yang Theory
Yin Yang Theory

2. I- What is the Yin-Yang theory?
Yin
Passive
Cold
Death
Winter
Female
Night
Even
Moon
Water
Yang
Active
Hot
Life
Summer
Male
Day
Odd
Sun
Fire

3. II- What is the origin of the
Yin-Yang theory?
• It is about 5000 years old?
• It is related to Taoism:
- Lao Tzu (604 – 531 BC).
- Tao = The way (The
essence of Taoism).
- Taoism as a religion.
Taoist monk

4. III- Where did the Yin-Yang symbol
come from?
The Yin-Yang or Tai chi diagram,
often used to symbolize Taoism.

5. Yin Yang
Yin-Yang Symbols
Ba Gua
The flag of South Korea

6. Yin-Yang symbol and ‘Ba Gua' paved in a clearing outside of
Nanning city, Guangxi province.

7. IV- What are the main principles of
the Yin-Yang theory?
1- Yin and Yang are opposites.
2- Yin and Yang are interdependent.
3- Yin and Yang are interchangeable.
4- Yin and Yang can transform into one
another.

8. IV- What are the main principles of
the Yin-Yang theory?
5- Part of Yin is in Yang, and part of
Yang is in Yin.
6- Yin and Yang can be further
subdivided into Yin and Yang.

9. V- What are some of the
applications of the Yin-Yang theory?
TCM = Traditional Chinese Medicine:
- Acupuncture.
- Herbal remedies.
- exercise.
- Changes in diet and lifestyle.
 Tai Chi.