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If you've seen those viral MRI images comparing active and sedentary 70-year-olds, you've witnessed one of the most compelling visual demonstrations of how exercise shapes the aging process - but the story behind them reveals even more.

In this episode, Professor Scott Trappe - the researcher behind those images - explains what happens to muscle as we age and how exercise fundamentally alters this process.

You'll discover:

• What those MRI comparisons reveal about the aging trajectory

• When muscle mass, strength, and power peak and how exercise affects this timeline

• The reality of fast-twitch fibre changes with age and what training can reverse

• Why males and females show remarkably similar responses to exercise across the lifespan

• Scott's evidence-based approach that consistently outperforms complex programming

• How muscle with different training histories responds to exercise stimuli

• The finding that 90-year-old lifelong exercisers maintain muscle quality similar to 40-year-olds

• Why consistency matters more than complexity in long-term outcomes

This conversation explores what decades of research reveal about muscle adaptation and the aging process.