Study Links Lifelong Exercise to Reduced Dementia Risk

A recent study from University College London has revealed a connection between lifelong physical activity and reduced risk of dementia, particularly Alzheimer's disease. The research analyzed data from the Insight46 study, which has tracked individuals born in the same week in 1946, finding that those who exercised regularly exhibited better cognitive function at age 70, even with early Alzheimer's markers present. It highlighted that exercise helps preserve the hippocampus, a brain region crucial for memory and learning, with benefits being notably greater in women. The study aligns with previous findings indicating that low physical activity is linked to higher dementia risk, suggesting that promoting regular exercise could be a vital intervention. Additionally, a related study at the University of Missouri indicated that even short periods of inactivity can negatively affect memory and learning, emphasizing the need for an active lifestyle to mitigate Alzheimer's risk. These findings reinforce the importance of both physical activity and sleep quality in maintaining cognitive health as we age.