Is the qi and blood in the meridians visible to the naked eye? Why can acupoints invigorate qi and nourish blood?

As we all know, the twelve meridians is the most important part of human body, and it is the channel to run the whole body's qi and blood. Qi and blood are the most basic substances to maintain human life activities. From nourishing the whole body organs to ensuring the functional activities of organs, the participation of qi and blood is indispensable. So, what is the qi and blood in the human body made of?

At present, we know that there are many gases in the human body, such as breathing in, burping and farting. Are these gases in the body? Is blood red blood in blood vessels?

According to the principle, distribution and function of qi, TCM divides qi in human body into primordial qi, primordial qi, defensive qi and nourishing qi.

Primitive energy, also known as "primordial energy" and "true qi", is the driving force to maintain human life activities. It is mainly produced by the innate qi in the kidney and needs the subtle Shui Gu of spleen and stomach biochemistry to enrich and nourish it. Mainly distributed in the kidney, through the triple energizer last Saturday, all over the viscera and skin. Its main function is to promote and regulate the growth, development and reproductive function of the human body, while maintaining various life activities of the human body.

Zongqi is acquired qi, which is produced in the chest by inhaling natural clear qi and Shui Gu essence. It is mainly distributed in the chest, upper respiratory tract, perfusing heart pulse, and spreading throughout the body through triple energizer. Its main function is to control respiratory function, perfuse heart pulse and promote qi and blood.

Qi Ying and Wei Qi are relative concepts, both of which originated from the essence of Shui Gu. The essence of Shui Gu is called the essence of Qi Ying, and the essence of Shui Gu is called the essence of Wei Qi because of its strong vitality and fast flow. Among them, Qi Ying runs in the pulse and Stephy runs outside the pulse; The function of invigorating qi is to metabolize blood and nourish the whole body; Defending qi has the functions of protecting muscle surface, defending against exogenous pathogens, warming viscera, muscles and fur, regulating the opening and closing of acupoints, controlling sweat excretion and maintaining body temperature.

On the other hand, blood is produced by Shui Gu's essence and kidney essence, and is produced and distributed all over the body under the control of the spleen and stomach, heart, lung, liver and kidney. It mainly has nourishing and deifying effects.

Since TCM talks about qi and blood functionally, how do acupoints regulate qi and blood? How can a small acupuncture needle be related to qi and blood?

Although you can only see qi and blood from the side when dissecting the human body, it is not only effective to regulate qi and blood with acupuncture points. The effect of acupuncture depends on the right needle, the right technique and the combination of acupoints, not just one instrument.

For example, when people with weak qi and blood receive acupuncture treatment, they can choose moxibustion or needles with less stimulation, such as fine needles, and choose tonic methods in acupuncture technology. Acupoint combination should choose the acupoints that tonify qi and blood, such as Zhongyu, Guanyuan, Qihai and Zusanli, which can be considered together to tonify qi and blood.