Blood circulation causes

Monodesmosidic S. s. have a high surface tension activity, form strongly foaming, soap-like solutions in water, and on direct introduction into the blood circulation cause hemolysis of red blood particles even at high dilution they thus act as potent plasma and frsh toxins. Digitonin forms poorly soluble 1 1 complexes with cholesterol and other 3/3-hydroxy- sterols, this property is used for the isolation and analysis of digitonin. 

Another consequence of the effect of pressure on gas solubility is the painful, sometimes fatal, affliction known as the bends. This occurs when a person goes rapidly from deep water (high pressure) to the surface (lower pressure), where gases are less soluble. The rapid decompression causes air, dissolved in blood and other body fluids, to bubble out of solution. These bubbles impair blood circulation and affect nerve impulses. To minimize these effects, deep-sea divers and aquanauts breathe a helium-oxygen mixture rather than compressed air (nitrogen-oxygen). Helium is only about one-third as soluble as nitrogen, and hence much less gas comes out of solution on decompression. 

Air embolus An obstruction in a small blood vessel caused by air that is introduced into a blood vessel and carried through the circulation until it lodges in a smaller vessel. 

Shock An upset in the body caused by inadequate amounts of blood circulating in the blood stream. It can be caused by marked blood loss, overwhelming infection, severe injury to tissue, emotional factors, etc. 

Chemicals may also damage the immune system and enzymes that are required to detoxify harmful substances. It is also speculated that MCS symptoms may be caused by impaired blood circulation or the body s decreased ability to extract or use oxygen from the bloodstream. Lead, mercury and other heavy metal exposures can contribute to the development or aggravation of MCS as well. 

Venous thrombosis results in congestion in the affected foot. The foot becomes painful, swollen and blue or black in colour, caused by lack of blood circulation. 

Sickle-cell anemia causes red blood cells to assume a sickle shape. The abnormal blood cells disrupt blood circulation, which can lead to infections, organ damage, and chronic pain. 

Dan Shen is cold and pungent, and enters the Heart meridian directly. It can cool the blood and reduce the heat in the blood. Its pungent nature disperses and dissolves the congealed blood and promotes blood circulation. It can also disperse constrained Qi in the chest. It is commonly used in combination with other chief herbs to reduce the heat at the Ying level and is a very effective herb to calm the mind and treat restlessness, irritability and a warm sensation in the chest caused by heat in the blood. 

This is the most critical stage of the warm-febrile diseases. At this stage, the Qi and Yin are seriously injured, and the heat-toxin has already entered the blood and consumed the blood. At the same time, the heat severely disturbs the blood circulation and causes bleeding. 

Mu Dan Pi is bitter, pungent and slightly cold Chi Shao Yao is bitter and cold. They can clear heat and cool the blood. The strong points of these herbs are that they can also dissolve congealed blood and promote blood circulation. Blood stasis often occurs when heat consumes the blood and makes blood thick. In addition, heat makes blood move erratically ( like a river in a storm ) and also leads to blood stagnation. The cold herbs, which are used in the formula to cool the blood and stop bleeding, may also cause blood stagnation directly. Mu Dan Pi and Chi Shao Yao are particularly selected to treat these conditions. 

The Heart governs the blood and promotes blood circulation. Heat can easily enter the blood and cause bleeding. 

Dan Shen can be used as assistant in the formula of clearing heat from the Heart. When heat injures the Yin and consumes the blood of the Heart, it makes the blood thicker than normal. At the same time, heat can force the blood to move erratically ( like a river in a storm ). Both of these conditions may cause blood stagnation. Dan Shen can cool the blood, promote the blood circulation and remove the congealed blood, enabling recovery of the normal condition of blood and its circulation. 

Sheng Jiang and Gui Zhi together with rice wine are assistants. They stimulate the Heart-Yang, and promote the Qi movement and blood circulation so as to treat the palpitations which are partially caused by the Qi and blood stagnation. 

The tonifying function of Dang Gui has been discussed in the chief herbs. As Dang Gui also has the function of promoting the blood circulation, it is used as an assistant to regulate the blood circulation. It is mainly selected in formulas to treat dysmenorrhea, amenorrhea, tingling and numbness of the limbs that are caused by deficiency of blood and slowing down of blood circulation. 

Gui Zhi and Gan Cao can directly tonify the Heart-Yang. Gui Zhi is also able to spread the Yang and promote the blood circulation. As they treat the cause of the disorder directly, both are considered as chief herbs in the formula. 

Since there are a number of astringent substances that may cause stagnation, Qian Cao Gen is used as corrective assistant. It can stop bleeding yet promote blood circulation. At the same time, it can also remove congealed blood. 

The exterior dampness stays at the skin, the subcutaneous region, the muscles and the joints. It blocks the Qi movement and blood circulation, and causes Bi syndrome. 

If phlegm obstructs the Heart, blocks the blood circulation and disturbs the mind, it causes palpitations, chest pain, restlessness, insomnia, depression, mental confusion, delirium and mania. 

Since the formulas can activate the blood circulation as well as the Qi movement, they can make the bleeding heavier or may cause miscarriage in early pregnancy. 

Heat may overstimulate the blood circulation, hasten its speed and even cause bleeding. 

Herbs that promote the blood circulation are pungent they can make the blood circulate quickly, break up congealed blood or soften hardness. These actions may harm the fetus, causing miscarriage and heavier bleeding. 

These herbs can invigorate blood and promote blood circulation. They are warm in nature. The herbs in this group are used widely in different types of disorder caused by blood stagnation. Most are effective for relieving pain and some can be used topically. 

These herbs are able to promote Qi movement in the Lower-Jiao and stimulate blood circulation there. They also treat Qi stagnation and reduce distension directly. They are all strong herbs and can effectively reduce pain caused by Qi stagnation. Since they enter different meridians, they can treat Qi stagnation in different regions Wu Yao enters the Kidney and Bladder meridians, Qing Pi the Liver meridian and Zhi Shi the Large Intestine meridian. 

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