What Is Qi? - NOOCI
What Is Qi? - NOOCI 
        What Is Qi? - NOOCI

What Is Qi?

Qi is a profound concept within the realm of Traditional Chinese Medicine (TCM). Pronounced as "chee," this term encapsulates the vital life force that flows through all aspects of the universe. It courses through our bodies, our surroundings, and the natural world, ultimately binding all matter together. In TCM, understanding qi is fundamental to comprehending health, illness, and the balance within our bodies.


Four Types of Qi

In TCM, qi is not a monolithic entity but rather a complex concept that can be categorized into four types. It is crucial to maintain balance between each type of qi within our bodies.

  • Parental Qi, or yuan qi, is the form of qi that is inherited for our parents and resides in the kidneys.
  • Pectoral Qi, or zong qi, is generated through breathing and is stored in the lungs.
  • Nutritional Qi, or ying qi, is derived from the food we consume. It is responsible for circulating vital nutrients throughout our bodies.
  • Defensive Qi, or wei qi, acts as the body’s guardian, protecting it from external pathogens and illnesses. Like the nutritional qi, the defensive qi is also derived from food.

  • Five Cardinal Functions of Qi

    Furthermore, just as there are different types of qi, TCM also recognizes different purposes of qi. There are five core functions of qi, called the ‘cardinal functions.’ These main functions are:

  • Actuation: maintaining the energy that is necessary for the proper functioning of organs, meridians, and blood circulation. Deficiency in this aspect can lead to dysfunction and illness.
  • Warming: producing heat and regulating body temperature. Deficiency in warming functions may result in symptoms such as low body temperature and cold limbs. 
  • Defending: safeguarding the body against external elements and illnesses that may threaten the body.
  • Containment: ensuring that bodily organs and fluids remain in their correct positions. A deficiency in containment functions can lead to disrupted fluids and organ functioning.
  • Transformation: converting nutrients and air into different types of qi for various bodily functions.

  • Qi Imbalances

    Various health issues may arise when the qi within our bodies falls out of balance.Two main causes of qi imbalances are excess qi and qi deficiency.


    As the name suggests, excess qi occurs when there is too much energy within the body. This may be caused by external toxins or by excessive exercise, stress, overeating, and even negative emotions. Symptoms of excess qi include irritability, stress, tension, and pain. 


    On the opposite of the spectrum is qi deficiency. This deficiency stems from a lack of energy and may be caused by lack of nourishment such as proper food, water, and air. It also may be caused by lack of sleep, mental stimulation, and social interaction. Individuals with insufficient qi often experience fatigue, difficulty digesting food, susceptibility to illness, and depression.


    Tips for Maintaining Healthy Qi

    Prioritize Rest and Sleep

    In today’s busy world, over exertion and stress are common causes of qi imbalance. If you notice that you are fatigued, tense, or low energy, try to make time to allow your body to rest. Take breaks throughout the day, take short naps, and strive for seven to nine hours of sleep each night.


    Eat a Balanced Diet

    As previously explained, much of our energy is obtained through the foods we eat. Maintaining a balanced diet is the key to nourishing our qi from the inside. For some examples of foods that support qi health, check out our article on warming foods for the upcoming colder seasons.


    Movement and Breathing

    It is important to take care of our physical bodies in order to maintain a healthy flow of qi. Gentle exercise such as qigong and tai chi are great options to keep your body active. Additionally, practicing deep, purposeful breathing can also support qi health.


    Qi is the essence that courses through the heart of Traditional Chinese Medicine, representing the vital force that sustains life and well-being. By understanding the various types and functions of qi, as well as recognizing and addressing imbalances, individuals can embark on a path to improved health and vitality.