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February 23, 2026

Why Fitness Starts in the Brain: Science Sam Breaks It Down



Shane Hewitt speaks with Dr. Samantha Yamin, known as Science Sam, about new research showing that specific neurons activated after exercise may help build endurance. Yamin explains how these brain circuits, found in mice, contribute to training adaptation and why fitness is more than muscle and cardiovascular improvements. The segment also explores how biology, intelligence and personal differences shape both fitness and learning.
#neuroscience #fitnessscience #cfraottawa #talkradio #ottawa
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