Exercising in your 40s and 50s might do more for your brain than you think. A 40-year study of thousands of adults found that people who stayed active in midlife and later life had up to a 45% lower risk of developing dementia.
The study used a self-reported physical activity index to measure how much time people spent in slight, moderate, or heavy activity. While the research didn't find one intensity to be the single most effective, being regularly active at any level in your 40s and 50s was linked to better brain health later on.
