The definition of insomnia, according to the American Sleep Disorders Association (ASDA), is difficulty falling asleep or staying asleep. If it occurs every night or most nights for an extended time, like Ero's, it's called chronic insomnia.
　　Perhaps the most important point to realize about insomnia is that it is not a disease, but rather a symptom. This symptom can occur with many different types of illnesses or conditions. In the majority of cases, underlying causes exist for the insomnia. When no other underlying causes can be found, the patient is said to be suffering from primary insomnia. People who suffer from insomnia, regardless of the cause, may have trouble falling or staying asleep and/or they may wake too early in the morning. Insomnia is a major health problem because it is common, appears to contribute to car and industrial accidents and can be quite frustrating for patients.
　　traditional chinese medicine holds that insomnia is due to disorders of the visceral organs and disharmony between qi and blood along with uneasiness of the mind.
　　Acupuncture and massage has a fine effect on insomnia .