Wandering is a common problem for patients with cognitive impairment. One of the main reasons for wandering is that the cognitive ability of the patients has declined, resulting in deterioration of short-term memory, orientation and judgment, so that when the elderly go out, they are prone to forget their destinations and the reasons for going out, and fail to recognize the environment and the direction when they leave their familiar surroundings, so that they are prone to getting lost or even wandering away.
