#385 - AMA #82: Applying the tools of longevity in the real world: disease prevention, DEXA scans, artificial sweeteners, injury recovery, stability training, habit formation, protein intake and mTOR activation, and more

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In this "Ask Me Anything" (AMA) episode, Peter answers listener questions across a wide range of topics, focusing on practical decision-making and real-world application. He explores how health priorities and strategies should evolve across different decades of life, which chronic diseases are most challenging to manage and how to think about risk hierarchies, and which emerging interventions—beyond exercise—show the most promise for dementia prevention. Peter also breaks down the utility of wearables and explains how to use and interpret DEXA scans effectively. He discusses the challenges of behavior change and how to make healthy habits stick, along with training strategies for balance, stability, and injury resilience, drawing lessons from his own setbacks. Additional topics include high-protein diets and mTOR, how to weigh mechanisms versus outcomes, how to evaluate diet sodas and non-nutritive sweeteners in context, and a range of listener questions covering health fads, emotional health, and sleep routines.

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We discuss:

• Overview of episode topics, emphasizing the goal of providing actionable, real-world health guidance [1:30];
• How health priorities and training strategies should evolve from early adulthood through older age [2:45];
• Comparing the four major chronic diseases: which are most preventable, most uncertain, and most concerning [8:00];
• Emerging strategies for dementia prevention: biomarkers, early detection, and new pharmacologic approaches [15:00];
• How to use wearable data effectively: when it's helpful, when it's not, and how to avoid over-reliance [19:00];
• DEXA scans: timing, interpretation, and limitations in body composition and bone density tracking [23:00];
• Best practices for building sustainable health habits [30:15];
• How to train your balance and stability [33:30];
• How to recover from injuries and use setbacks to build strength and resilience [36:15];
• High protein intake and the impact on mTOR: evaluating mechanisms versus real-world evidence on longevity [38:30];
• Diet soda and artificial sweeteners: evaluating risks, benefits, and the importance of context [47:00];
• How to balance enjoying life today with making choices that support long-term health and longevity [51:45]; and
• More.

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