Dr. Ya-Wen ChengDr. Ya-Wen Cheng
612 West Duarte Road Suite # 801
Arcadia, CA 91007

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705 West La Veta Ave Suite # 106
Orange, CA 92868

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Hours of Operation: Please Call for Appointment

Dr. Ya-Wen Cheng

Dr. Ya-Wen Cheng
Acupuncture & Chiropractic
Board Certified Doctor of Chiropractic
Acupuncturist, and Nutrition Specialist
Over 140 years of experience in providing healthcare.
A family tradition since 1860

Dr. Ya-Wen Cheng


Acupuncture alleviates pain and can increase immune response by balancing the flow of vital life energy throughout the body. It is an element of Traditional Chinese Medicine (TCM) that in the West is often used as a stand-alone treatment for a wide range of disease conditions, from the common cold and flu to addiction and chronic fatigue syndrome.

ACUPUNCTURE ORIGINATED IN CHINA over 5,000 years ago. It is based on the belief that health is determined by a balanced flow of qi (also referred to as chi), the vital life energy present in all living organisms. According to acupuncture theory, qi circulates in the body along 12 major energy pathways called meridians, each linked to specific internal organs and organ systems. There are over 1,000 acupoints within the meridian system that can be stimulated to enhance the flow of qi. When special hair-thin needles are inserted into these acupoints they help correct and rebalance the flow of energy and consequently relieve pain and restore health.

Meridians -- Fact or Fictions?

In the 1960s, Professor Kim Bong Han Ph.D., and a team of researchers in Korea attempted to document the existence of meridians in the human body using microdissection techniques. They found evidence that there exists an independent series of fine duct-like tubes corresponding to the paths of traditional acupuncture meridians. Fluids in this system sometimes travel in the same direction as the blood and lymph, but at other times may flow in the opposite direction. They realized that these ducts were different from the vascular and lymphatic systems that Western science had previously identified, and that the meridians themselves might exist within them.

The existence of the meridian system was further established by French researcher Dr. Pierre deVernejoul, M.D., Ph.D. at Paris University, who injected radioactive isotopes into the acupoints of humans and tracked their movement with a special gamma imaging camera. The isotopes traveled 12 inches along acupuncture meridians within four to six minutes. Dr. de Vernejoul then challenged his work by injecting isotopes into blood vessels at random areas of the body rather than into acupoints. The isotopes did not travel in the same manner at all, further indicating that the meridians do indeed comprise a system of separate pathways within the body.

In 1997, acupuncture's credibility as a viable medic treatment was bolstered by the U.S. Food and Drug Administration (FDA), which reclassified the acupuncture needle from "experimental" to "medical device" status, thereby acknowledging that the acupuncture needle is a safe and effective medical instrument. Also in 1997, the National Institutes of Health (NIH) released an efficacy statement endorsing acupuncture for a variety of conditions, including post-operative pain, dental pain fol­lowing surgery, nausea associated with chemotherapy, morning sickness, tennis elbow, and carpal tunnel syndrome. The FDA estimates that Americans make 9 to 12 million visits per year to acupuncturists annually.

The Electro Properties of AcupunctureDr. Ya-Wen Cheng

Current research suggests that there is a specific relationship between acupuncture points, meridians, and the electrical currents of the body. Since the 1950s, numerous studies have been conducted using electrical devices to measure the galvanic skin response (GSR) of both meridians and specific acupoints. These studies not only verify the existence of the meridian system, but also indicate that the acupoints themselves have a higher level of electrical conductance than non-acupuncture sites.

In the 1970s, under a grant from the NIH (National Institutes of Health), Dr. Robert O. Becker, M.D., and biophysicist Maria Reichmanis were able to prove that electrical currents did indeed flow along the ancient Chinese meridians and that 25% of the acupuncture points existed along those scientifically measurable lines.  They reasoned that these points acted as amplifiers to boost the minute electrical signals as they traveled along the body and that the insertion of a needle could interfere with that flow and thus block the stimulus of pain.  The other acupuncture points, Dr. Becker suggested, “may simply be weaker or in a different link than the ones our instruments were capable of revealing.”


Since its founding as a profession in 1895, chiropractic has become the second largest primary healthcare field in the world and one of the fastest growing. The popularity of chiropractic can be traced to several factors, including a general increased interest in wellness and holistic health, an awareness of the dangers posed by many conventional medical procedures and drugs, and the very high patient satisfaction that is a hallmark of the profession. The search for a non-medical approach that respects the body's innate healing abilities has led millions of people directly to chiropractic. Although many people still associate chiropractic only with back and neck pain, it has also been shown to be safe and effective in improving function and enhancing performance of the body's healing powers. With chiro­practic's emphasis on wellness, patients have also recovered from a variety of injuries, illnesses, and many other serious health problems.

The practice of chiropractic focuses on the relationship between the structure of the spine and the function coordinated by the nervous system, and how this relationship affects the preservation and restoration of health. When there is nerve interference caused by misalignments in the spine, known as subluxations, tension and/or pain can occur and the body's defenses can be diminished. By adjusting the spine to remove subluxations, normal nerve function can be restored.

The spinal column, or backbone, consists of 24 small bones called vertebrae and extends from the back of the skull to below the small of the back. The vertebrae form a protective "tunnel" for the spinal cord. Pairs of spinal nerves branch off the spinal cord between each of the vertebra and extend to every part of the body, including muscles, bones, organs, and glands. Over this complex highway of nerves, the brain sends messages that regulate all bodily functions and receives feedback about the health and functioning of each part of body.

When subluxation occurs, it can result in tension in the tissues of the nervous system.  This, in turn, can impede the functioning of the nervous system, resulting in diminished or distorted communication between the brain and the rest of the body, and contributing to a wide variety of health problems.  For instance, tension in the lower back may force a person to compensate by bending forward, which can interfere with the movement of the ribs and restrict the functioning of the lungs. It may also cause the neck muscles to contract, which in many cases can lead to muscle spasms, headaches, strained vision, or balance and coordination problems.

Usually symptoms related to spinal misalignment are quite clear and can include muscle spasms, pain, headaches, stiffness, or digestive difficulties. These symptoms are actually valuable messages from the body to alert the person that a problem already exists. The effects of subluxation can also be far more subtle or even completely imperceptible, however, and can slowly undermine one's health. The distorted nerve slow caused by the vertebral subluxation can cause longterm damage to organs, which does not become obvious until the condition has progressed.

When the vertebrae are properly aligned, the spine remains mobile, allowing the electrical impulses from the brain to travel freely along the spinal cord to the organs, thus maintaining healthy function. When subluxations occur, they impede this normal flow in the nerve struc­tures, which in turn affects normal organ function. Millions of patients who have suffered for years report finding relief from back pain, asthma, headaches, hearing problems, and a long list of other disease conditions after receiving chiropractic care and discovering the role that subluxation played in their illness. 

Herbal Medicine
Herbal Medicine, also known as botanical medicine or phytotherapy, is the most ancient form of health care known to humankind. Traditional Chinese Medicine (TCM) have used herb for thousands of years. Herbs have also been used in all cultures throughout history. Extensive scientific documentation now exists concerning their use for major and minor health conditions, including premenstrual syndrome, indigestions, insomnia, liver problem, and heart disease, among others.

What is an Herb?

The word herb in herbal medicine refers to a plant or plant part that is used to make medicine, spices, or aromatic oils. An herb can be a leaf, flower, stern, seed, root, fruit, bark, or any other plant part used for its medicinal property

Herbs have provided humankind with medicine from the earliest beginnings of civilization. Traditional Chinese Medicine (TCM) have handed down their accu­mulated knowledge of the medicinal use of herbs to suc­cessive generations. This vast body of information serves as the basis for much of traditional medicine today.

There are an estimated 250,000 to 500,000 plants on the earth today, but only about 5,000 have been extensively studied for their medicinal applications. "This illustrates the need for modern medicine and science to turn its attention to the plant world once again to find new medicines that might cure contemporary medical conditions," says Norman R. Farnsworth, Ph.D., Research Professor of Pharmacognosy at the University of Illinois, in Chicago. "Con­sidering that 121 prescription drugs come from only 90 species of plants, and that 74% of these were discovered by following the ancient herbal formulas, a logical person would have to say that there may still be more ‘jackpots’ out there."

How Herbal Medicine Works

In general, herbal medicines work in much the same way as conventional pharmaceutical drugs -- via their chem­ical constituents. Herbs contain a large number of natu­rally occurring chemicals that have biological activity.  Herbal medicine often has much to offer when used to facilitate healing in chronic problems. By skillful selec­tion of herbs, a profound transformation in health can be effected with less danger of the side effects inherent in conventional drug-based medicine. However, the com­mon assumption that herbs act slowly and mildly is not always true. Adverse effects can occur if an inadequate dose, a low-quality herb, wrong age of the herb, incorrect geographic area, or the wrong part of the herb is consumed.

For examples, Ginseng, an herb that has become mainstream in US has many different medicinal properties.  In order for the herbal formula to be effective to a specific condition, the selection process mandated a high standard from the age, harvest location, the dosage used, and the effective part of the Gingsen.  In addition, the process in creating the formula must be follow to the strictest standard like the creation of modern electronic components. The entire process is mandated from cleaning, to the insertion of the herb into the solution, the temperature during extraction, the method used for extraction, the temperature and moistures during extraction, the amount of waters needed to create the formula, the type of equipment, and the cooling process.  When the formula was created, it should be tested for the dosage and the quality per mm.  Using the none effective part of the Ginseng that has a wrong age or from a wrong geographic area, or the incorrect amount of methods, time, water, temperature, or equipments during the extraction of the Ginseng formula, may not achieve the effect it was intended.  In fact, adverse effect may occur.

An experienced physician is well aware of those differences in creating the herbal formula and should be able to avoid those pitfalls, and prescribe a personalized herbal formula specific to your conditions.

Dr. Ya-Wen Cheng

Dr. Ya-Wen Cheng