If you have a body that you enjoy moving, download and listen to this episode, a think-piece about all the mysterious ways our muscles function. Guest Bonnie Tsui, author of the fascinating new book On Muscle, talks with hosts Sarah Bowen Shea and fitness professional Britany Williams about: -lifting weights being important to your cognitive health;  -not being afraid of age-related changes to your body;  -how running and swimming are “essential” movements;  -how movements hold memories; and, -the muscle-related tours she led at a modern art museum!    Before the guest joins around 5:12, Sarah excitedly tells her co-host (+ former personal trainer!) about her new weight-training tools. Register for our Lake Placid retreat.      When you shop our sponsors, you help AMR. We appreciate your—and their—support!   Feel the Currex difference: Get 15% off with code AMR15 at Currex.com   Use code INF-AMR to get a gift card good for your next purchase at Selkirk.com   The future’s bright: Get 20% off Tifosi sunglasses with code AMR2025 at TifosiOptics.com Learn more about your ad choices. Visit megaphone.fm/adchoices