The characteristic of blood theology can be changed. And the blood concretion is decreased, the formation of thrombosis is controlled and the blood circulation especially the microcirculation is improved; The immunity condition of the organism is adjusted and the disease-resistant ability of the organism is increased. The poisoning condition of the organism is improved and the activity of super oxide dismutase inside the organism is increased. Therefore, the organism is protected from the damage of free radicals, MMS and other poisonous substance. Nasal Cavity is irradiated on by Laser, and the patients Suffering from Cerebro-Cardiovascular Diseases can be Saved! At present, according to WHO statistics cerebro-cardiovascular disease, cancer and diabetes are the diseases with the mortality of No.1, 2 and 3 separately in China. Thus they are called the Three Great Killers,causing severe threat to people's lives and health. Moreover, the cerebro-cardiovascular disease caused by high blood lipids and high blood viscosity is the first of the Three Killers! So it is called as ,Second Cancer" sometimes, but it is far more terrifying than cancer. Cancer still has the count down of the life, but cerebro-cardiovascular disease will not give the patient the exact forecasts of life. The MINI Semiconductor Laser Therapeutic Instrument not only stops the patient s life from ending in advance, but also gives a possibility for the patient to enjoy the nice spring of life again. Medical theoretical basis A. Blood rheology theory think that the main reason of ischemic illness is the disorder and obstacle of oxygen transportation, the erythrocytes in blood can be activated by photons laser irradiation therapy, thereby the oxygen transportation ability of blood can be recovered and increased. B. The theory of body"s function regulation think that the physiological function of the body is not only affected by the mutual communication and adjustment amongst all of the functional systems but also affected by the substance, energy and information outside the body. C. Laser biology theory think that, the respondent reaction will be aroused when the organism is irradiated by weak laser with proper wavelength and definite power, that is, laser biological e