Dementia results from cognitive impairment, due to damage to the brain. Most cases of dementia are classified as Alzheimer's disease. Signs of dementia generally include, but are not limited to, a decline in short-term memory, a decline in problem-solving skills, a decline in sensory perception skills, and changes in personality. Dementia appears gradually, and the course of the disease extends over several years or more. In Alzheimer's disease, it progresses through several stages in conjunction with levels of regressive development. Occupational therapists work with older adults in a variety of settings, treating dementia as a condition that affects occupational functioning. Occupational therapists educate family members, stakeholders, and even patients in the early stages. Occupational therapists assess people with dementia to identify areas of strength and functional decline that require therapeutic intervention. Although cognitive performance therapy is unlikely to improve cognitive function, the patient can improve through compensation or adaptation. Occupational therapists also help caregivers to help them cope with these difficulties. In the community, a therapist can help people with dementia live safely in their homes for as long as possible through environmental assessment and adaptation. They may also provide medical services, such as fall prevention and educational care courses, and help people with dementia maintain remaining functions for as long as possible. This can be done in different ways based on: • Health promotion: By focusing on strengths and maintaining them for as long as possible, and enhancing medical services from caregivers, therapists can enrich patients’ lives by increasing performance in their preferred activities. • Treatment: Although cognitive skills are not expected to be cured, there is a possibility of restoring physical skills. • Maintenance: The therapist identifies what works well in the daily routine of people with dementia, and provides support to ensure that the person’s skills are maintained for as long as possible. • Modification: This is perhaps the most widely used intervention for people with dementia because it involves a safe and supportive environment through adaptation and compensation. In the early stages of dementia, the patient has difficulty with executive skills. He or she may be referred to occupational therapy for assessment of driving, work, home safety and therapeutic intervention. Specialists can help patients by working on those tasks that are considered important. In the middle stages, the specialist focuses on home safety and getting the patient to do activities and tasks that are personally meaningful. During the later stages, the patient has difficulty with basic activities of daily living. Enhancing function, encouraging relationships and social participation, and finding ways for those with dementia to enjoy life are keys to a successful occupational therapy intervention. Providing education for all family members, caregivers, and patients, and building on the strengths of the patient, will enable people with dementia and caregivers to support them in living life to the fullest.