There are many clinical causes of brain disruption. Brain disruption refers to a symptom in which the patient is unable to remember things that happen in a short period of time. The most common clinical causes are, for example, the inability to rest when extremely sleepy, in which case the patient may experience a brief brain disruption that may recover in a few seconds. It is also seen in people who have been drinking alcohol for a long time, especially after heavy drinking can lead to neurological dysfunction in the brain, and the patient may experience memory dysfunction and may then have short periods of disconnectedness. Elderly people who often have short term memory problems should be considered as early manifestations of dementia. Patients are advised to have MRI and visit the hospital for assessment of the intelligence scale to observe the patient’s condition. Clinically, brain disruptions may also be caused by transient ischemic attacks, because a sudden interruption of cerebral blood flow such as in the hippocampus can lead to short-term memory loss, and the memory will be restored after the blood flow passes.