Contrary to popular belief, the brain remains adaptable at every stage of life, including later years. Although we can’t halt all aspects of cognitive aging, compelling evidence reveals that certain activities play a powerful role in protecting the brain and delaying decline. The habits that matter most might surprise you.


What the research shows

Researchers have found that combining good sleep, regular physical activity and social engagement creates significant protection against cognitive decline and dementia risk. No single factor dominates. It’s the combination.

The Lancet Commission estimates that nearly half of dementia cases may be linked to modifiable risk factors, things within our influence. These include physical inactivity, social isolation, poor sleep, hearing loss, and cardiovascular disease.

This doesn’t mean dementia is always preventable. But it does mean the way we live has a real effect on brain health.


Activities that support cognitive health

Learning something new

The brain responds to novelty and challenge. Learning a new skill: a musical instrument, a language, a craft, a technology, builds new neural connections and strengthens cognitive reserve. The keyword is new. Doing a familiar puzzle isn’t as effective as learning something you haven’t done before.

Challenging mental activities are particularly beneficial when they involve learning, strategy and engagement with others.

Social engagement

Conversation is cognitively demanding in the best possible way. It requires listening, processing, responding and emotional attunement. Regular social engagement with others, particularly in structured group settings, is consistently linked to lower dementia risk and better cognitive performance.

Physical activity

Exercise increases blood flow to the brain and promotes the growth of new brain cells in the hippocampus, the region most critical for memory. Even regular walking has measurable effects. The relationship between physical activity and brain health is one of the most robust findings in ageing science.

Reading and structured mental activity

Reading, writing, crosswords, chess and strategy games all support brain health when done regularly. The research suggests it matters less what you choose and more that you engage consistently with challenging material.

Managing hearing loss

Untreated hearing loss is one of the leading modifiable risk factors for dementia, according to The Lancet Commission on Dementia Prevention. When hearing declines, people naturally withdraw from conversations and social situations, which then reduces the cognitive stimulation those interactions provide. If you or a family member has noticed hearing difficulties, a hearing check with an audiologist is worth prioritising.

Sleep

Consistently poor sleep is now understood to be a significant risk factor for cognitive decline. During deep sleep, the brain clears metabolic waste, including amyloid proteins associated with Alzheimer’s disease. Protecting sleep quality is brain health work.


Staying mentally active at Holdsworth

Holdsworth’s programs offer several avenues for the kind of cognitively stimulating, socially rich engagement that supports brain health.

Our weekly Woollahra Life! Philosophy Club engages members in current affairs, ideas and conversation. Our bus outings expose participants to new places and experiences.

For those seeking support at home, Support at Home and CHSP funding can include support for individual and group social support.

We also run Dementia Friendly Woollahra, a community initiative delivered in partnership with Woollahra Council, supporting brain health awareness and dementia-inclusive activities across the local area.

Our free monthly information sessions are open to older adults and family members who want to learn more about available support. Register your interest here or call 1300 882 962.

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