Our brains thrive on a challenge, but protecting them as we age doesn't have to be hard work. Experts suggest that simple, enjoyable activities can help build 'cognitive reserve' – a protective effect that may delay age-related decline and extend healthy lifespan.
Psychologist Alan Gow from Heriot-Watt University in Edinburgh says, 'Whatever age we are, there are things that we can do more or less of that might give our thinking skills a bit of a boost.' Small changes across physical, social and mental domains can make a difference without overhauling daily life.
One key area to target is the hippocampus, which is crucial for spatial navigation and is often the first brain region affected in Alzheimer's disease. Neurologist Dennis Chan from University College London notes that getting lost is an early symptom. Protecting this area could help prevent or delay symptoms.
Studies show that taxi and ambulance drivers, who rely heavily on spatial processing, have among the lowest rates of Alzheimer's-related mortality. Similarly, a study of healthy men who performed spatial navigation tasks for four months showed improved skills and no loss of hippocampal volume, unlike controls who experienced age-related shrinkage.
Chan explains that some elderly individuals have extensive Alzheimer's-related brain changes yet show no symptoms, likely due to robust 'scaffolding' built through physical, intellectual and social activity. He encourages everyone to stay active in these areas.
To enhance spatial skills, experts recommend orienteering, playing with building blocks, or navigating without GPS. A small trial found that older adults who played a virtual reality spatial navigation game improved their memory, though not all computer games offer such benefits.
