How Alzheimer's Pathology Exists Without Dementia
Dr. Masud Husain explains why 30% of Alzheimer's brains show no dementia and how early apathy predicts cognitive decline 15 years in advance.
40 hours of podcasts, in 5 minutes.
Dr. Masud Husain joins Andrew Huberman to discuss the neurobiology of motivation, apathy, and effort-reward calculations in the brain. They explore how dopamine circuits in the basal ganglia drive goal pursuit, why apathetic brains burn more energy during decision-making, and how environmental design and cognitive habits can overcome procrastination. The conversation also examines the latest insights into Parkinson's disease, early behavioral biomarkers for Alzheimer's, and lifestyle factors promoting cognitive resilience.
Dr. Masud Husain explains why 30% of Alzheimer's brains show no dementia and how early apathy predicts cognitive decline 15 years in advance.
Dr. Masud Husain explains why working memory degrades with extra tasks and how environmental friction protects your brain's limited capacity.
Dr. Masud Husain explains the neurobiology of dopamine, the split between wanting and liking, and why stimulants hurt high baselines.
Dr. Masud Husain explains why unmotivated brains consume more neural glucose during decisions and how to reset your effort-reward calculations.
Dr. Masud Husain explains how basal ganglia damage causes clinical apathy and why dopamine drives initiation for low-reward tasks.
Dr. Masud Husain explains how dopamine sets the motivation threshold for physical action in Parkinson's disease.