How is head dizzy from time to time return a responsibility

The brain sometimes dizzy can be seen in the posterior circulation ischemia, especially in patients with hypertension, diabetes and other risk factors of cerebral arteriosclerosis, resulting in poor vascular elasticity, when patients show posterior circulation ischemia can be manifested as sudden dizziness, but also accompanied by nausea, vomiting, severe when showing visual rotation. For vertigo caused by posterior circulation ischemia, it is recommended to improve circulation, symptomatic treatment. Secondly, sometimes vertigo can also be seen in peripheral vertigo, clinically more common is Meniere's syndrome was paroxysmal, patients can be induced due to sleep or fatigue, is caused by vestibular labyrinth edema, treatment is mainly to reduce vestibular labyrinth edema, but also pay attention to rest, prevent the recurrence of the disease. Sometimes dizziness can also be seen in some patients who don't sleep well. After sleeping well, patients can show this dizziness due to chronic hypoxia of brain cells, which will soon improve after a good rest.