Cerebral atherosclerosis is common in middle age and above, more men than women, and there is little difference between the sexes above 65 years old. The early manifestations of intracranial atherosclerosis are: 1. Dizziness This is the most common, like motion sickness, some for vertigo, sudden spinning, nausea and vomiting, etc.. Some patients feel unstable walking. 2, tinnitus Common tinnitus on one side of the ear. 3.Head ringing Feels like ringing inside the head. 4.Headache Most patients complain of headache mostly in the forehead and occipital area, and the nature is mostly dull pain, which is most likely to appear or aggravate the original symptoms when the position changes. 5.Memory loss Memory loss is also manifested as fast forgetting of recent events and clear remembering of past events, but memory deficits are not obvious. This is often the earliest manifestation of intracranial atherosclerosis, suggesting insufficient blood supply to the brain, which affects normal brain work. 6.Sleep disorders manifest as difficulty in falling asleep, dreaminess, easy to wake up, and many dreams. If the above situation occurs, you should go to the hospital as soon as possible.