It is considered important to intervene in dementia treatment from an early stage. Therefore, preventive approach including lifestyle-related improvements that do not decrease physical activity is necessary.

Cognitive function tends to decline in association with body composition change such as sarcopenia.

Since the central nervous system plays an important role in maintaining muscle activity, the association between brain pathology and muscle function has attracted attention. It will become more and more important for neurosurgeons who are familiar with brain to deepen their understanding of locomotor disorders from the viewpoint of rehabilitation medicine and participate in dementia prevention and treatment.

We looked back on the activities of the Sapporo dementia support project committee and the activities of the Sapporo city medical Association in the field of dementia, and examined the social activities of doctors.

Neurosurgeons are likely to be involved in dementia care in old age and appear to be an important area of physician social activity. The dementia policy promotion organization of the local government was considered to be a meaningful organization for gathering the opinions of the citizens and implementing the policy. It was considered that participation in dementia projects conducted by medical associations and local governments should be as much as possible.