A neurologist outlines six lifestyle habits that can help slow or even reverse age-related brain shrinkage, noting that atrophy often starts in your 30s and 40s. The advice emphasizes practical changes—covering physical activity, mental challenge, sleep, diet, stress management and social engagement—that align with other recommendations for building cognitive reserve. These clinician-backed habits support recent findings on midlife fitness, mental 'stretching,' nutrition, digital detoxes and gut–brain links as ways to protect cognition over the long term.
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