This episode is brought to you by AX3 Life, Strong Coffee Company and WHOOP.

Today we sit down with neurologist and brain health expert Majid Fotuhi, MD, PhD, author of The Invincible Brain, to challenge conventional thinking about Alzheimer's disease and cognitive decline. Dr. Fotuhi explains why Alzheimer's may not be a single disease but rather the result of multiple processes—including inflammation, poor sleep, metabolic dysfunction, and lifestyle factors—that accumulate over time. The conversation explores the science behind brain shrinkage, the role of sleep in clearing toxins from the brain, why exercise may be one of the most powerful tools for cognitive health, and the five pillars of brain fitness: exercise, sleep, nutrition, stress reduction, and brain training. He also shares clinical research showing that targeted lifestyle changes can significantly improve cognitive performance and even increase hippocampal volume in patients with mild cognitive impairment, offering a hopeful perspective on protecting and strengthening the brain as we age.

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00:00 – Why Alzheimer's may not be a single disease

02:34 – The "soup of problems" explanation for Alzheimer's

03:21 – Why many dementia diagnoses miss treatable causes

04:01 – Treating lifestyle factors that affect brain health

06:30 – Understanding mild cognitive impairment (MCI)

10:15 – Brain shrinkage and inflammation explained

15:12 – Why lifestyle affects brain aging

20:40 – The role of exercise in brain health

28:22 – How exercise helps grow new neurons

29:11 – Exercise and the brain's waste-clearing system

30:03 – Why sleep is critical for brain detox

31:20 – The five pillars of brain health

33:45 – Why there is no "miracle cure" for brain health

38:10 – How small daily habits compound over time

45:44 – Research showing the brain can grow again

48:11 – MCI vs Alzheimer's diagnosis explained

49:28 – Risk factors that can accelerate dementia

50:13 – Clinical results improving cognitive performance

52:00 – Ever Forward

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