Are Your Hobbies Reducing Your Dementia Risk? 4 Questions to Ask Yourself

Key Points:

• Dementia is now the leading cause of death in Australia, with approximately 446,000 people currently living with brain conditions affecting memory, thinking, and behavior; this number is expected to nearly double by 2065.
• Research indicates that up to 40% of dementia cases worldwide may be linked to modifiable lifestyle factors, including education, exercise, social connection, and managing health conditions like diabetes and high blood pressure.
• Engaging in hobbies—whether physical, cognitive, or social—can help build "cognitive reserve," which strengthens the brain's ability to cope with age-related changes and reduces dementia risk.
• Studies show having multiple hobbies is associated with a 19-23% reduction in dementia risk, but no single hobby is superior; the key is choosing enjoyable activities that combine mental challenge, physical activity, stress relief, and social interaction.
• Social connection is particularly important, as social isolation is a major dementia risk factor; maintaining active social engagement can delay dementia symptoms and support overall brain health.