Executive function is the ability to apply knowledge correctly to achieve a purpose, including motivation, planning, monitoring, and resistance to interference, and is closely related to the ability to perform daily life. Executive dysfunction refers to the reduction of these functions. People need to set goals and plan implementation in daily life and social activities, which can reflect well on executive ability. Patients in the early stages of Alzheimer’s disease can do simple things such as sweeping the floor and wiping the table as requested, but they rarely do it consciously. For example, if a person who used to be very warm to guests has Alzheimer’s disease and a guest comes to the house, the patient does not know that he or she should entertain the guest, which often makes people feel embarrassed.