<p>Is every step you take a &quot;withdrawal&quot; from your joint bank account? In this high-stakes episode, Letty and Ryan tackle the <strong>4 Most Googled Questions of 2026</strong> and burn the old rulebook to the ground.</p><p>We dive into the mind-blowing MRI research that proves running doesn&#39;t thin your cartilage—it can actually make it <strong>thicker and stronger</strong>. Ryan breaks down the &quot;Thicker Cartilage Paradox&quot; and the &quot;Sponge Effect&quot; that keeps your joints oiled, while Letty discusses the 120g carb-loading revolution and her final preparations for the Boston Marathon.</p><p>If you’ve been running in fear of injury or hitting the wall, this episode is your biological wake-up call. Your body isn&#39;t a machine that wears out; it’s a system that levels up.</p><p><strong>In this episode:</strong></p><ul><li><p><strong>The Hypertrophy Reveal:</strong> Why runners&#39; knees often look healthier on an MRI than non-runners&#39;.</p></li><li><p><strong>The 120g Carb Ceiling:</strong> the new gold standard of fueling.</p></li><li><p><strong>The 50mm Stack Height Trap:</strong> Is your &quot;super-shoe&quot; sabotaging your stability?</p></li><li><p><strong>Heavy Lifting for Speed:</strong> Why the strongest runners are becoming the fastest runners.</p></li><li><p><strong>Boston Updates</strong></p></li></ul><p><strong>Stop guessing. Start adapting.</strong></p><p><em>Get the full research links and the Boston Marathon event schedule at </em><a href="http://MarathonJournal.com" target="_blank" rel="noopener">MarathonJournal.com</a><em>.</em></p>