The Critical Decades: How Daily Habits in Midlife Can Actively Delay Cognitive Decline

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Long before the first signs of forgetfulness or confusion appear, the cellular ""seeds of dementia"" may already be taking root in the brain. Leading neurologists warn that cognitive decline isn't a sudden onset of old age, but a slow process that can begin up to 30 years before a clinical diagnosis. In this episode of the podcast, Dan dives into the hard science of prevention with Drs. Dean and Ayesha Sherzai, exploring how a groundbreaking new blood test is helping doctors track early neurological damage long before symptoms show. We also break down the concept of genetic "penetrance"—revealing why carrying a dementia gene does not mean you are destined to get the disease, and how…