Dizziness after drinking glucose is mainly due to the fact that after the human body has eaten glucose, it is very easy to be absorbed, and a peak of blood glucose is quickly formed in the human body. The concentration of blood glucose in the blood is very high, while insulin appears to be a corresponding shortage of high blood glucose state will make the blood vessels of the body to form a hypertonic state, the absorption of water in the surrounding tissues, filling the blood vessels, making the surrounding tissues to appear temporary ischemia, dehydration, which leads to transient cerebral insufficient blood supply to appear dizziness. For this situation, in fact, do not need too much clinical intervention, a little supplementation of water to dilute glucose, appropriate rest, the symptoms will gradually improve.