There are several theories explaining why and how acupuncture works. The first premise is that it promotes the secretion of endorphins which results in pain relief and a lightened feeling. This may be one of the reasons why fatigue is reduced. The next explanation is that it increases the level of triglycerides, prostaglandin and other hormones which boost the immunity level of the person.

At the same time, acupuncture affects the constriction and dilation of the blood vessels which are attributed to the secretion of vasodilators resulting from the alleviation of some allergies and hypertension. It is also said that serotonin and noradrenaline levels are affected by acupuncture.:)